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Journal articles on the topic 'Quantum electrodynamic theory'

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Published: 4 June 2021

Last updated: 15 February 2022

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1

Boyer, Timothy. "Stochastic Electrodynamics: The Closest Classical Approximation to Quantum Theory." Atoms 7, no. 1 (2019): 29. http://dx.doi.org/10.3390/atoms7010029.

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Stochastic electrodynamics is the classical electrodynamic theory of interacting point charges which includes random classical radiation with a Lorentz-invariant spectrum whose scale is set by Planck’s constant. Here, we give a cursory overview of the basic ideas of stochastic electrodynamics, of the successes of the theory, and of its connections to quantum theory.

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2

Shabaev, V. M. "Quantum electrodynamic theory of multiply charged ions." Soviet Physics Journal 33, no. 8 (1990): 660–70. http://dx.doi.org/10.1007/bf00892300.

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3

Fujikawa, Takashi, and Hiroko Arai. "Nonrelativistic quantum electrodynamic approach to photoemission theory." Journal of Electron Spectroscopy and Related Phenomena 149, no. 1-3 (2005): 61–86. http://dx.doi.org/10.1016/j.elspec.2005.07.003.

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4

Keller, Ole, and Lee M. Hively. "Electrodynamics in curved space-time: Free-space longitudinal wave propagation." Physics Essays 32, no. 3 (2019): 282–91. http://dx.doi.org/10.4006/0836-1398-32.3.282.

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Jiménez and Maroto [Phys. Rev. D 83, 023514 (2011)] predicted free-space, longitudinal electrodynamic waves in curved space-time, if the Lorenz condition is relaxed. A general-relativistic extension of Woodside’s electrodynamics [Am. J. Phys. 77, 438 (2009)] includes a dynamical, scalar field in both the potential- and electric/magnetic-field formulations without mixing the two. We formulate a longitudinal-wave theory, eliminating curvature polarization, magnetization density, and scalar field in favor of the electric/magnetic fields and the metric tensor. We obtain a wave equation for the lon

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5

Iqbal, Saleem, Muhammad Zafar, Farhana Sarwar, Syed Mohsin Raza, and Muhammad Afzal Rana. "Application of Electrodynamic Theory on Quantum Hall Effect." World Journal of Condensed Matter Physics 06, no. 02 (2016): 87–94. http://dx.doi.org/10.4236/wjcmp.2016.62012.

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6

Gordov, E. P., and A. Z. Fazliev. "Quantum electrodynamic perturbation theory based on semiclassical representation." Journal of Mathematical Physics 26, no. 6 (1985): 1261–63. http://dx.doi.org/10.1063/1.526932.

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7

Philip, Timothy M., and Matthew J. Gilbert. "Theory of AC quantum transport with fully electrodynamic coupling." Journal of Computational Electronics 17, no. 3 (2018): 934–48. http://dx.doi.org/10.1007/s10825-018-1191-z.

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8

Widom, A., Y. N. Srivastava, C. Vittoria, H. How, R. Karim, and H. Jiang. "Quantum-electrodynamic theory of vortex oscillations in type-II superconductors." Physical Review B 46, no. 2 (1992): 1102–6. http://dx.doi.org/10.1103/physrevb.46.1102.

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9

SALAM, A. "A quantum electrodynamic theory of two-centre two-photon circular dichroism." Molecular Physics 99, no. 4 (2001): 267–73. http://dx.doi.org/10.1080/00268970010008360.

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10

KELLER, OLE. "NONLINEAR OPTICS IN THE NEAR-FIELD ZONE OF ATOMS." Journal of Nonlinear Optical Physics & Materials 11, no. 03 (2002): 275–301. http://dx.doi.org/10.1142/s0218863502001048.

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Elements of a new quantum electrodynamic theory which might enable one to obtain a better understanding of the linear and nonlinear interaction between atomic systems in near-field contact is presented. To follow the space-time dynamics in the atomic near-field zone an electromagnetic propagator formalism with polychromatic photons is constructed. A first-quantized description based on the photon energy wave function for free polychromatic photons is extended in such a manner that the birth process of the photon, which takes place in the near-field zone of the source, can be followed. In order

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Domnitch, Evelina, Dmitry Gelfand, and Tommaso Calarco. "Trapping the Objectless." Leonardo 52, no. 1 (2019): 68–69. http://dx.doi.org/10.1162/leon_a_01465.

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Through the epistemological lenses of quantum theory and phenomenological art, the authors describe their collaborative development of several artworks exploring electrodynamic levitation. Comprising diverse ion traps that enable naked-eye observation of charged matter interactions, these artworks question the murky boundaries of perceptibility and objectification.

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Yannopapas, Vassilios. "An atomistic-electrodynamics theory for the optical response of periodic lattices of metallic nanoparticles in the quantum size regime." International Journal of Modern Physics B 31, no. 24 (2017): 1740001. http://dx.doi.org/10.1142/s021797921740001x.

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We present a new theoretical method for calculating the optical properties of periodic arrays of metallic nanoparticles whose dimensions are in the quantum-size limit and cannot, therefore, be described by macroscopic electrodynamic theory based on Maxwell’s equations. In the first stage, the method calculates the scattering matrix for a single metal nanoparticle described as a polyhedral cluster of atoms, via a discrete-dipole approximation/point-matching technique. The resulting scattering matrix is incorporated into a layer-multiple-scattering technique which allows the modeling of two- and

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13

Cour, Brian R. La, and Morgan C. Williamson. "Emergence of the Born rule in quantum optics." Quantum 4 (October 26, 2020): 350. http://dx.doi.org/10.22331/q-2020-10-26-350.

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The Born rule provides a fundamental connection between theory and observation in quantum mechanics, yet its origin remains a mystery. We consider this problem within the context of quantum optics using only classical physics and the assumption of a quantum electrodynamic vacuum that is real rather than virtual. The connection to observation is made via classical intensity threshold detectors that are used as a simple, deterministic model of photon detection. By following standard experimental conventions of data analysis on discrete detection events, we show that this model is capable of repr

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14

LEHNERT, BO. "On angular momentum and rest mass of the photon." Journal of Plasma Physics 79, no. 6 (2013): 1133–35. http://dx.doi.org/10.1017/s002237781300069x.

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AbstractA reconsideration is made on the basic concepts of the individual photon, including its angular momentum (spin) and a possibly existing very small rest mass. In terms of conventional classical theory, as well as of its quantum mechanical counterpart, the results from a so far established Standard Model of an empty vacuum state are not found to be reconcilable with an experimentally relevant photon model. The main properties of such a model would on the other hand become compatible with the results of a recently established revised quantum electrodynamic theory based on a non-zero elect

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15

Zheng, Yi. "A Generalization of Electromagnetic Fluctuation-Induced Casimir Energy." Advances in Condensed Matter Physics 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/198657.

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Intermolecular forces responsible for adhesion and cohesion can be classified according to their origins; interactions between charges, ions, random dipole—random dipole (Keesom), random dipole—induced dipole (Debye) are due to electrostatic effects; covalent bonding, London dispersion forces between fluctuating dipoles, and Lewis acid-base interactions are due to quantum mechanical effects; pressure and osmotic forces are of entropic origin. Of all these interactions, the London dispersion interaction is universal and exists between all types of atoms as well as macroscopic objects. The dispe

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16

Shabaev, V. M. "Quantum electrodynamic theory of recombination of an electron with a highly charged ion." Physical Review A 50, no. 6 (1994): 4521–34. http://dx.doi.org/10.1103/physreva.50.4521.

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17

Pal'chikov, V. G., I. Yu Skobelev, and A. Ya Faenov. "Testing of QED theory on the Rydberg series for the He-like multicharged ions." Canadian Journal of Physics 80, no. 11 (2002): 1255–61. http://dx.doi.org/10.1139/p02-091.

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The paper examines the 1/Z expansion method in calculating the energy levels, ionization energies, and wavelengths of the resonant Rydberg states 1snp 1P1 for atoms belonging to the helium isoelectronic sequence. The interactions of the bound electrons are treated as a perturbation that results in the electronelectron Breit interaction, relativistic corrections, and quantum electrodynamic (QED) contributions. By comparing the calculated wavelengths with a number of observed wavelengths, the QED contributions to the ground state are analyzed. PACS Nos.: 31.20Di, 31.20Tz, 31.30Jv, 31.50+W

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Yu, Chao, Jingtao Zhang, Zhi-Wei Sun, Zhenrong Sun, and Dong-Sheng Guo. "A nonperturbative quantum electrodynamic approach to the theory of laser induced high harmonic generation." Frontiers of Physics 10, no. 4 (2014): 1–6. http://dx.doi.org/10.1007/s11467-014-0429-x.

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Kosobukin, V. A. "Plasmon-excitonic polaritons in metal-semiconductor nanostructures with quantum wells." Физика и техника полупроводников 52, no. 5 (2018): 502. http://dx.doi.org/10.21883/ftp.2018.05.45846.35.

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AbstractA theory of plasmon-exciton coupling and its spectroscopy is developed for metal-semiconductor nanostructures. Considered as a model is a periodic superlattice with cells consisting of a quantum well and a layer of metal nanoparticles. The problem is solved self-consistently using the electrodynamic Green’s functions taking account of resonant polarization. Coulomb plasmon-exciton interaction is associated with the dipole surface plasmons of particles and their image charges due to excitonic polarization of neighboring quantum well. Optical reflection spectra are numerically investigat

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LEHNERT, B., and L. J. HÖÖK. "An electron model with elementary charge." Journal of Plasma Physics 76, no. 3-4 (2010): 419–28. http://dx.doi.org/10.1017/s0022377809990638.

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AbstractAn earlier elaborated model of the electron, being based on a revised quantum electrodynamic theory, is further investigated in terms of an improved numerical iteration scheme. This point-charge-like model is based on the “infinity” of a divergent generating function being balanced by the “zero” of a shrinking characteristic radius. This eliminates the self-energy problem. According to the computations, the quantum conditions on spin, magnetic moment, and magnetic flux, plus the requirement of an elementary charge having the experimental value, can all be satisfied within rather narrow

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21

Cheng, K. T., M. H. Chen, W. R. Johnson, and J. Sapirstein. "High-precision relativistic atomic structure calculations and the EBIT: Tests of quantum electrodynamics in highly charged ions." Canadian Journal of Physics 86, no. 1 (2008): 33–43. http://dx.doi.org/10.1139/p07-106.

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High-precision relativistic atomic-structure calculations based on the relativistic many-body perturbation theory and the relativistic configuration-interaction method are shown to provide stringent tests of strong-field quantum electrodynamic (QED) corrections when compared with electron beam ion trap measurements of the spectra of highly charged, many-electron ions. It is further shown that theory and experiment are accurate enough to test not just the leading screened QED corrections but also smaller contributions from higher order Breit interactions, relaxed-core QED corrections, two-loop

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22

Daywitt, William C. "The Anomalous Magnetic Moment of the Electron and Proton Cores According to the Planck Vacuum Theory." European Journal of Engineering Research and Science 4, no. 6 (2019): 117–19. http://dx.doi.org/10.24018/ejers.2019.4.6.1379.

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Despite the resounding success of the quantum electrodynamic (QED) calculations, there remains some confusion concerning the Dirac equation’s part in the calculation of the anomalous magnetic moment of the electron and proton. The confusion resides in the nature of the Dirac equation, the fine structure constant, and the relationship between the two. This paper argues that the Dirac equation describes the coupling of the electron or proton cores to the invisible Planck vacuum (PV) state (involving e2 ); and that the fine structure constant ( = e2/e2 ) connects that equation to the electron or

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23

Jentschura, Ulrich D., Peter J. Mohr, Joseph N. Tan, and Benedikt J. Wundt. "Fundamental constants and tests of theory in Rydberg states of hydrogenlike ionsThis paper was presented at the International Conference on Precision Physics of Simple Atomic Systems, held at University of Windsor, Windsor, Ontario, Canada on 21–26 July 2008." Canadian Journal of Physics 87, no. 7 (2009): 757–62. http://dx.doi.org/10.1139/p08-118.

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A comparison of precision frequency measurements to quantum electrodynamic (QED) theoretical predictions can be used to test theory and to obtain information regarding fundamental constants. We find that for Rydberg states, theoretical uncertainties due to the problematic nuclear size correction are very small. With the help of QED calculations, the largest remaining source of uncertainty can be eliminated. Theoretical predictions, taking advantage of the latest theoretical results, in combination with planned experiments, can lead to an improved value for the Rydberg constant.

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YINNON, CARMI A., and TAMAR A. YINNON. "DOMAINS IN AQUEOUS SOLUTIONS: THEORY AND EXPERIMENTAL EVIDENCE." Modern Physics Letters B 23, no. 16 (2009): 1959–73. http://dx.doi.org/10.1142/s0217984909020138.

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Experimentally observed aggregates in under-saturated aqueous solutions are analyzed. Aggregates studied include: 0.5 to 6 micrometer-sized domains composed of solvated strong electrolyte ions, organic- or bio-molecules; clusters of up to 280 water molecules. Hitherto, the customary electrostatic (ES) theories could not explain the formation of these large aggregates. Recently, it was shown that quantum electrodynamic (QED) interactions might affect the structure of solutions. Our analysis indicates that these interactions cause the observed aggregations. We found the observed aggregate charac

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25

Blundell, S. A. "Calculation of QED corrections in highly charged Zn-like ions." Canadian Journal of Physics 87, no. 1 (2009): 55–65. http://dx.doi.org/10.1139/p08-065.

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We report calculations of many-electron quantum electrodynamic (QED) effects for the 4s2 1S0–4s4p 1P1 transition in high-Z Zn-like ions with Z = 70, 74, 76, 79, 82, 83, 90, and 92. When combined with earlier relativistic many-body perturbation theory (RMBPT) calculations, good agreement is found with recent measurements, Trabert et al. (Phys. Rev. A, 70, 032506 (2004)) at the level of 1–2 experimental standard deviations. We discuss the additional QED and RMBPT calculations that it would be desirable to perform to confirm this level of agreement.PACS Nos.: 31.30.Jv, 32.30.Rj, 31.25.–v, 31.15.A

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26

Zhang, Chun Mei, Yan Sun, Chao Chen, Feng Wang, Bin Shao, and Bing Cong Gou. "Energy, fine structure, hyperfine structure, and transitions for the high-lying multi-excited 4Pe,o states of B-like ions." Canadian Journal of Physics 94, no. 5 (2016): 448–57. http://dx.doi.org/10.1139/cjp-2015-0609.

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The energies of the high-lying multi-excited states 1s22s2pnl and 1s22p2nl 4Pe,o (n ≥ 2) for B-like C+, N2+, F4+, and Mg7+ ions are calculated using Rayleigh–Ritz variation method with multiconfiguration interaction, and the inclusion of mass polarization and relativistic corrections. The fine structure and hyperfine structure for these systems are investigated using first-order perturbation theory. The configuration structure of the high-lying multi-excited series is identified not only by energy, but also by its contribution to normalization of the angular spin components, and it is further

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27

Drake, G. WF, W. Nörtershäuser, and Z. C. Yan. "Isotope shifts and nuclear radius measurements for helium and lithium." Canadian Journal of Physics 83, no. 4 (2005): 311–25. http://dx.doi.org/10.1139/p05-020.

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It is now well established that accurate relative values of the rms nuclear charge radius for light atoms can be extracted from a comparison between high-precision theory and experiment for the isotope shift in atomic transition frequencies. Results are available for isotopes of helium and lithium. This paper reviews and updates the interpretation of earlier measurements for 3He relative to 4He, and 6Li relative to 7Li. New results are presented for the quantum electrodynamic recoil corrections. Recent measurements for the halo nucleus 6He, and the short-lived nuclei 8Li, and 9Li are discussed

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Yan, Zong-Chao, and G. W. F. Drake. "General methods for evaluating matrix elements of singular operators in two-electron systems." Canadian Journal of Physics 72, no. 11-12 (1994): 822–44. http://dx.doi.org/10.1139/p94-109.

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Due to the recent advances in both theory and experiment for the fine structure of two-electron atomic systems, it is necessary to include quantum electrodynamic (QED) effects through orders α6mc2, α7ln(Zα)mc2, and α7mc2, in order to match the experimental precision. These effects can be expressed in terms of a sum of singular operators. A general scheme is given for the evaluation of a wide range of matrix elements of high-order singular QED operators for two-electron atomic systems in Hylleraas coordinates. The scheme presented here can be applied to triplet states with arbitrary angular mom

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Drake, GWF, and W. C. Martin. "Article." Canadian Journal of Physics 76, no. 9 (1998): 679–98. http://dx.doi.org/10.1139/p98-044.

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Ionization energies for several of the lower lying S- and P-states of helium are deduced from a combination of theory and a variety of high-precision measurements of transition energies. High-precision variational methods are reviewed and used to subtract the nonrelativistic energy and lowest order α2 au relativistic corrections from the ionization energies. The remaining quantum electrodynamic (QED) shift of order α3 au and higher is calculated in an extended KabirSalpeter formalism and compared with experiment. The comparison verifies the usefulness of the KabirSalpeter formalism for terms

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Gao, J., F. Shen, and J. G. Eden. "Polarization effects and the role of above-threshold ionization photoelectrons in high-order harmonic generation: comparison of experiment with quantum electrodynamic theory." Journal of Physics B: Atomic, Molecular and Optical Physics 32, no. 17 (1999): 4153–61. http://dx.doi.org/10.1088/0953-4075/32/17/302.

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31

Pinto, Fabrizio. "Gravitational Dispersion Forces and Gravity Quantization." Symmetry 13, no. 1 (2020): 40. http://dx.doi.org/10.3390/sym13010040.

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The parallel development of the theories of electrodynamical and gravitational dispersion forces reveals important differences. The former arose earlier than the formulation of quantum electrodynamics so that expressions for the unretarded, van der Waals forces were obtained by treating the field as classical. Even after the derivation of quantum electrodynamics, semiclassical considerations continued to play a critical role in the interpretation of the full results, including in the retarded regime. On the other hand, recent predictions about the existence of gravitational dispersion forces w

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32

Labzowsky, L. N., G. Schedrin, D. Solovyev, and G. Plunien. "Nonresonant corrections and limits for the accuracy of the frequency measurements in modern hydrogen experiments." Canadian Journal of Physics 85, no. 5 (2007): 585–95. http://dx.doi.org/10.1139/p07-014.

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The theory of the nonresonant corrections, defining the limits of accuracy for the frequency measurements in resonance experiments, is generalized to the situation when the excitation of an atomic state is governed by one Hamiltonian Ĥin and the decay of the excited state is governed by another Hamiltonian Ĥout. The description developed here corresponds to the experimental conditions realized in most accurate modern resonance-frequency measurements of the 2s–1s transition in hydrogen. Two different variants of the theoretical description of the resonance experiments, referred to as "statistic

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33

Hartin, Anthony. "Strong field QED in lepton colliders and electron/laser interactions." International Journal of Modern Physics A 33, no. 13 (2018): 1830011. http://dx.doi.org/10.1142/s0217751x18300119.

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The studies of strong field particle physics processes in electron/laser interactions and lepton collider interaction points (IPs) are reviewed. These processes are defined by the high intensity of the electromagnetic fields involved and the need to take them into account as fully as possible. Thus, the main theoretical framework considered is the Furry interaction picture within intense field quantum field theory. In this framework, the influence of a background electromagnetic field in the Lagrangian is calculated nonperturbatively, involving exact solutions for quantized charged particles i

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Michael Köhler, J., Danja Kuhfuß, Phillip Witthöft, Martina Hentschel, and Andrea Knauer. "Single-Photon-Single-Electron Transition for Interpretation of Optical Spectra of Nonspherical Metal Nanoparticles in Aqueous Colloidal Solutions." Journal of Nanomaterials 2018 (August 30, 2018): 1–8. http://dx.doi.org/10.1155/2018/1781389.

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Noble metal nanoparticles—especially shape anisotropic particles—have pronounced resonances in the optical spectrum. These sensitive absorption modes attract great interest in various fields of application. For nonspherical particles, no analytic description of the absorption spectra according to the commonly used Mie theory is possible. In this work, we present a semi-empirical approach for the explanation of the optical spectra of shape anisotropic particles such as silver nanoprisms and gold nanorods. We found an interpretation of the optical absorption spectra which is based on a single-ph

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Cirilo-Lombardo, Diego Julio. "Non-Riemmanian geometry, force-free magnetospheres and the generalized Grad-Shafranov equation." International Journal of Geometric Methods in Modern Physics 16, no. 01 (2019): 1950013. http://dx.doi.org/10.1142/s0219887819500130.

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The magnetosphere structure of a magnetar is considered in the context of a theory of gravity with dynamical torsion field beyond the standard General Relativity (GR). To this end, the axially symmetric version of the Grad-Shafranov equation (GSE) is obtained in this theoretical framework. The resulting GSE solution in the case of the magnetosphere corresponds to a stream function containing also a pseudoscalar part. This function solution under axisymmetry presents a complex character that (as in the quantum field theoretical case) could be associated with an axidilaton field. Magnetar–pulsar

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Rebhan, Anton, and Günther Turk. "Polarization effects in light-by-light scattering: Euler–Heisenberg versus Born–Infeld." International Journal of Modern Physics A 32, no. 10 (2017): 1750053. http://dx.doi.org/10.1142/s0217751x17500531.

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The angular dependence of the differential cross-section of unpolarized light-by-light scattering summed over final polarizations is the same in any low-energy effective theory of quantum electrodynamics and also in Born–Infeld electrodynamics. In this paper, we derive general expressions for polarization-dependent low-energy scattering amplitudes, including a hypothetical parity-violating situation. These are evaluated for quantum electrodynamics with charged scalar or spinor particles, which give strikingly different polarization effects. Ordinary quantum electrodynamics is found to exhibit

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Treumann, Rudolf A., Wolfgang Baumjohann, and Yasuhito Narita. "Inverse scattering problem in turbulent magnetic fluctuations." Annales Geophysicae 34, no. 8 (2016): 673–89. http://dx.doi.org/10.5194/angeo-34-673-2016.

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Abstract. We apply a particular form of the inverse scattering theory to turbulent magnetic fluctuations in a plasma. In the present note we develop the theory, formulate the magnetic fluctuation problem in terms of its electrodynamic turbulent response function, and reduce it to the solution of a special form of the famous Gelfand–Levitan–Marchenko equation of quantum mechanical scattering theory. The last of these applies to transmission and reflection in an active medium. The theory of turbulent magnetic fluctuations does not refer to such quantities. It requires a somewhat different formul

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Biava, P. M., F. Burigana, R. Germano, P. Kurian, C. Verzegnassi, and G. Vitiello. "Stem Cell Differentiation Stage Factors and their Role in Triggering Symmetry Breaking Processes during Cancer Development: A Quantum Field Theory Model for Reprogramming Cancer Cells to Healthy Phenotypes." Current Medicinal Chemistry 26, no. 6 (2019): 988–1001. http://dx.doi.org/10.2174/0929867324666170920142609.

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A long history of research has pursued the use of embryonic factors isolated during cell differentiation processes for the express purpose of transforming cancer cells back to healthy phenotypes. Recent results have clarified that the substances present at different stages of cell differentiation—which we call stem cell differentiation stage factors (SCDSFs)—are proteins with low molecular weight and nucleic acids that regulate genomic expression. The present review summarizes how these substances, taken at different stages of cellular maturation, are able to retard proliferation of many human

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Stumpf, H., B. Fauser, and W. Pfister. "Composite Particle Theory in Quantum Electrodynamics." Zeitschrift für Naturforschung A 48, no. 7 (1993): 765–76. http://dx.doi.org/10.1515/zna-1993-0705.

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Abstract Without use of pathintegral formalism a composite particle effective dynamics is developed for spinor quantum electrodynamics. By algebraic evaluation of spinor quantum electrodynamics in Coulomb gauge a corresponding functional equation is derived. The commutation rules for the transversal electromagnetic field can be deduced as a consequence of this formalism. By application of weak mapping theorems the QED functional equation can be mapped onto a functional equation for composite particles with mutual interaction and interaction with the electromagnetic field. The formalism is demo

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Ganai, Prince A., Owais Ahmad, Javier Perez Tobia, Alexander Fennell, and Vedaant Vyas. "Lorentz symmetry breaking in supersymmetric quantum electrodynamics." International Journal of Geometric Methods in Modern Physics 17, no. 03 (2020): 2050038. http://dx.doi.org/10.1142/s0219887820500383.

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Lorentz symmetry is one of the fundamental symmetries of nature; however, it can be broken by several proposals such as quantum gravity effects, low energy approximations in string theory and dark matter. In this paper, Lorentz symmetry is broken in supersymmetric quantum electrodynamics using aether superspace formalism without breaking any supersymmetry. To break the Lorentz symmetry in three-dimensional quantum electrodynamics, we must use the [Formula: see text] aether superspace. A new constant vector field is introduced and used to deform the deformed generator of supersymmetry. This for

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41

Berrondo, M., and R. Jáuregui. "Minimal theory of quantum electrodynamics." Physical Review D 33, no. 2 (1986): 455–63. http://dx.doi.org/10.1103/physrevd.33.455.

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Wilson, James H. "The quantum electrodynamics physical (QED-P) theory to complement quantum electrodynamics (QED)." Physics Essays 34, no. 1 (2021): 17–27. http://dx.doi.org/10.4006/0836-1398-34.1.17.

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The electronic and muonic hydrogen energy levels are calculated very accurately [M. L. Eides, H. Grotch, and V. Shelyuto, Phys. Rep. 342, 63 (2001)] in Quantum Electrodynamics (QED) by coupling the Dirac Equation four vector c(α, I) current covariantly with the external electromagnetic (EM) field four vector in QED’s Interactive Representation. While QED has been extraordinarily successful computationally, it presents no physical description of the electron, or other charged leptons. The QED-Physical (QED-P) theory presented in this paper is equivalent to QED in that it is based only on the fo

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AKHMETELI, ANDREY. "IS NO DRAMA QUANTUM THEORY POSSIBLE?" International Journal of Quantum Information 09, supp01 (2011): 17–26. http://dx.doi.org/10.1142/s0219749911006909.

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The matter field can be naturally eliminated from the equations of the Klein-Gordon-Maxwell electrodynamics in the unitary gauge. The resulting equations describe independent dynamics of the electromagnetic field: if components of the 4-potential of the electromagnetic field and their first derivatives with respect to time are known in the entire space at some time point, the values of their second derivatives with respect to time can be calculated for the same time point, so the Cauchy problem can be posed, and integration yields the 4-potential in the entire space-time. This surprising resul

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DEMARCO, G., C. FOSCO, and R. C. TRINCHERO. "CONSISTENT CHIRAL QUANTUM ELECTRODYNAMICS." Modern Physics Letters A 06, no. 14 (1991): 1299–304. http://dx.doi.org/10.1142/s0217732391001391.

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Milton, Kimball A., E. K. Abalo, Prachi Parashar, Nima Pourtolami, and J. Wagner. "PT -symmetric quantum electrodynamics and unitarity." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 371, no. 1989 (2013): 20120057. http://dx.doi.org/10.1098/rsta.2012.0057.

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More than 15 years ago, a new approach to quantum mechanics was suggested, in which Hermiticity of the Hamiltonian was to be replaced by invariance under a discrete symmetry, the product of parity and time-reversal symmetry, . It was shown that, if is unbroken, energies were, in fact, positive, and unitarity was satisfied. Since quantum mechanics is quantum field theory in one dimension—time—it was natural to extend this idea to higher-dimensional field theory, and in fact an apparently viable version of -invariant quantum electrodynamics (QED) was proposed. However, it has proved difficult to

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Acharya, R., and P. Narayana Swamy. "No Eigenvalue in Finite Quantum Electrodynamics." International Journal of Modern Physics A 12, no. 21 (1997): 3799–809. http://dx.doi.org/10.1142/s0217751x97001961.

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We re-examine Quantum Electrodynamics (QED) with massless electron as a finite quantum field theory as advocated by Gell-Mann–Low, Baker–Johnson, Adler, Jackiw and others. We analyze the Dyson–Schwinger equation satisfied by the massless electron in finite QED and conclude that the theory admits no nontrivial eigenvalue for the fine structure constant.

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Zhuang, P., and U. Heinz. "Relativistic Quantum Transport Theory for Electrodynamics." Annals of Physics 245, no. 2 (1996): 311–38. http://dx.doi.org/10.1006/aphy.1996.0011.

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RECAMI, ERASMO, VLADISLAV S. OLKHOVSKY, and SERGEI P. MAYDANYUK. "ON NON-SELF-ADJOINT OPERATORS FOR OBSERVABLES IN QUANTUM MECHANICS AND QUANTUM FIELD THEORY." International Journal of Modern Physics A 25, no. 09 (2010): 1785–818. http://dx.doi.org/10.1142/s0217751x10048007.

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The aim of this paper is to show the possible significance, and usefulness, of various non-self-adjoint operators for suitable Observables in nonrelativistic and relativistic quantum mechanics, and in quantum electrodynamics. More specifically, this work deals with: (i) the maximal Hermitian (but not self-adjoint) time operator in nonrelativistic quantum mechanics and in quantum electrodynamics; (ii) the problem of the four-position and four-momentum operators, each one with its Hermitian and anti-Hermitian parts, for relativistic spin-zero particles. Afterwards, other physically important app

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Veklenko, Boris A. "Energy, Information, and Superluminal Speed in Quantum Electrodynamics." Light & Engineering, no. 04-2020 (August 2020): 27–33. http://dx.doi.org/10.33383/2019-097.

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Without using the perturbation theory, the article demonstrates a possibility of superluminal information-carrying signals in standard quantum electrodynamics using the example of scattering of quantum electromagnetic field by an excited atom.

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Costa, A. A. da. "Pulsar Geometrodynamics: Relativistic Radiative Plasma Theory and its Associated Quantum Phenomena." Symposium - International Astronomical Union 195 (2000): 385–86. http://dx.doi.org/10.1017/s007418090016320x.

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Plasma motion in pulsar magnetospheres is quasi-classical due to curvature radiation of highly energetic gamma-ray photons, implying an extension to the kinetic theory of plasmas. But with high energies involved, other quantum radiative processes become important in the context of vacuum (quantum) electrodynamics.

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