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Journal articles on the topic 'Quantum theory. Quantum optics'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Faizal, Mir, and Davood Momeni. "Universality of short distance corrections to quantum optics." International Journal of Geometric Methods in Modern Physics 17, no. 09 (2020): 2050145. http://dx.doi.org/10.1142/s0219887820501455.

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As quantum optical phenomena are based on Maxwell’s equations, and it is becoming important to understand quantum optical phenomena at short distances, so it is important to analyze quantum optics using short distance corrected Maxwell’s equation. Maxwell’s action can be obtained from quantum electrodynamics using the framework of effective field theory, and so the leading order short distance corrections to Maxwell’s action can also be obtained from the derivative expansion of the same effective field theory. Such short distance corrections will be universal for all quantum optical systems, and they will affect all short distance quantum optical phenomena. In this paper, we will analyze the form of such corrections, and demonstrate the standard formalism of quantum optics can still be used (with suitable modifications) to analyze quantum optical phenomena from this short distance corrected Maxwell’s actions.

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2

Pegg, D. T. "Absorber Theory in Quantum Optics." Physica Scripta T12 (January 1, 1986): 14–18. http://dx.doi.org/10.1088/0031-8949/1986/t12/002.

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3

NAKAMURA, Katsuhiro, and Jun MA. "Recent Progress in Quantum Optics. Quantum Chaos: Semiclassical Theory and Quantum Trasport." Review of Laser Engineering 28, no. 10 (2000): 656–62. http://dx.doi.org/10.2184/lsj.28.656.

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4

Wiseman, H. M. "Quantum trajectories and quantum measurement theory." Quantum and Semiclassical Optics: Journal of the European Optical Society Part B 8, no. 1 (1996): 205–22. http://dx.doi.org/10.1088/1355-5111/8/1/015.

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5

Hillery, Mark. "An introduction to the quantum theory of nonlinear optics." Acta Physica Slovaca. Reviews and Tutorials 59, no. 1 (2009): 1–80. http://dx.doi.org/10.2478/v10155-010-0094-8.

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An introduction to the quantum theory of nonlinear opticsThis article is provides an introduction to the quantum theory of optics in nonlinear dielectric media. We begin with a short summary of the classical theory of nonlinear optics, that is nonlinear optics done with classical fields. We then discuss the canonical formalism for fields and its quantization. This is applied to quantizing the electromagnetic field in free space. The definition of a nonclassical state of the electromagnetic field is presented, and several examples are examined. This is followed by a brief introduction to entanglement in the context of field modes. The next task is the quantization of the electromagnetic field in an inhomogeneous, linear dielectric medium. Before going on to field quantization in nonlinear media, we discuss a number of commonly employed phenomenological models for quantum nonlinear optical processes. We then quantize the field in both nondispersive and dispersive nonlinear media. Flaws in the most commonly used methods of accomplishing this task are pointed out and discussed. Once the quantization has been completed, it is used to study a multimode theory of parametric down conversion and the propagation of quantum solitons.

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6

Koshino, Kazuki. "Translation of semiclassical optical-response theory into quantum-optics theory." physica status solidi (c) 6, no. 1 (2009): 168–72. http://dx.doi.org/10.1002/pssc.200879854.

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7

Srinivas, M. D. "Quantum theory of continuous measurements and its applications in quantum optics." Pramana 47, no. 1 (1996): 1–23. http://dx.doi.org/10.1007/bf02847162.

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8

Dalton, B. J., Stephen M. Barnett, and P. L. Knight. "A quantum scattering theory approach to quantum-optical measurements." Journal of Modern Optics 46, no. 7 (1999): 1107–21. http://dx.doi.org/10.1080/09500349908230404.

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9

Krovi, Hari. "Models of optical quantum computing." Nanophotonics 6, no. 3 (2017): 531–41. http://dx.doi.org/10.1515/nanoph-2016-0136.

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AbstractI review some work on models of quantum computing, optical implementations of these models, as well as the associated computational power. In particular, we discuss the circuit model and cluster state implementations using quantum optics with various encodings such as dual rail encoding, Gottesman-Kitaev-Preskill encoding, and coherent state encoding. Then we discuss intermediate models of optical computing such as boson sampling and its variants. Finally, we review some recent work in optical implementations of adiabatic quantum computing and analog optical computing. We also provide a brief description of the relevant aspects from complexity theory needed to understand the results surveyed.

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10

CHANG, L. N., Z. LEWIS, D. MINIC, and T. TAKEUCHI. "QUANTUM SYSTEMS BASED UPON GALOIS FIELDS — FROM SUB-QUANTUM TO SUPER-QUANTUM CORRELATIONS." International Journal of Modern Physics A 29, no. 03n04 (2014): 1430006. http://dx.doi.org/10.1142/s0217751x14300063.

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In this paper, we describe our recent work on discrete quantum theory based on Galois fields. In particular, we discuss how discrete quantum theory sheds new light on the foundations of quantum theory and we review an explicit model of super-quantum correlations we have constructed in this context. We also discuss the larger questions of the origins and foundations of quantum theory, as well as the relevance of super-quantum theory for the quantum theory of gravity.

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11

Krotkov, Robert. "Quantum Optics, Experimental Gravitation, and Measurement Theory." American Journal of Physics 53, no. 8 (1985): 795–96. http://dx.doi.org/10.1119/1.14327.

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12

Frasca, Marco. "Theory of dressed states in quantum optics." Physical Review A 60, no. 1 (1999): 573–81. http://dx.doi.org/10.1103/physreva.60.573.

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13

Barchielli, A., and A. M. Paganoni. "Detection theory in quantum optics: stochastic representation." Quantum and Semiclassical Optics: Journal of the European Optical Society Part B 8, no. 1 (1996): 133–56. http://dx.doi.org/10.1088/1355-5111/8/1/011.

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14

Castro Santis, Ricardo. "Quantum stochastic dynamics in multi-photon optics." Infinite Dimensional Analysis, Quantum Probability and Related Topics 17, no. 01 (2014): 1450007. http://dx.doi.org/10.1142/s0219025714500076.

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Multi-photon models are theoretically and experimentally important because in them quantum properly phenomena are verified; as well as squeezed light and quantum entanglement also play a relevant role in quantum information and quantum communication (see Refs. 18–20).In this paper we study a generic model of a multi-photon system with an arbitrary number of pumping and subharmonics fields. This model includes measurement on the system, as could be direct or homodyne detection and we demonstrate the existence of dynamics in the context of Continuous Measurement Theory of Open Quantum Systems (see Refs. 1–11) using Quantum Stochastic Differential Equations with unbounded coefficients (see Refs. 10–15).

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15

Gisin, N., P. L. Knight, I. C. Percival, R. C. Thompson, and D. C. Wilson. "Quantum State Diffusion Theory and a Quantum Jump Experiment." Journal of Modern Optics 40, no. 9 (1993): 1663–71. http://dx.doi.org/10.1080/09500349314551671.

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16

Freidel, Laurent, Robert G. Leigh, and Djordje Minic. "Manifest non-locality in quantum mechanics, quantum field theory and quantum gravity." International Journal of Modern Physics A 34, no. 28 (2019): 1941004. http://dx.doi.org/10.1142/s0217751x19410045.

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We summarize our recent work on the foundational aspects of string theory as a quantum theory of gravity. We emphasize the hidden quantum geometry (modular spacetime) behind the generic representation of quantum theory and then stress that the same geometric structure underlies a manifestly T-duality covariant formulation of string theory, that we call metastring theory. We also discuss an effective non-commutative description of closed strings implied by intrinsic non-commutativity of closed string theory. This fundamental non-commutativity is explicit in the metastring formulation of quantum gravity. Finally we comment on the new concept of metaparticles inherent to such an effective non-commutative description in terms of bi-local quantum fields.

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17

Walls, T. J., V. A. Sverdlov, and K. K. Likharev. "MOSFETs below : quantum theory." Physica E: Low-dimensional Systems and Nanostructures 19, no. 1-2 (2003): 23–27. http://dx.doi.org/10.1016/s1386-9477(03)00288-1.

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18

BENDER, CARL M. "NON-HERMITIAN QUANTUM FIELD THEORY." International Journal of Modern Physics A 20, no. 19 (2005): 4646–52. http://dx.doi.org/10.1142/s0217751x05028326.

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In my talk at the Seventh QCD Workshop held in Villefranche in January 2003 I showed that a non-Hermitian Hamiltonian H possessing an unbroken [Formula: see text] symmetry (i) has a real spectrum that is bounded below, and (ii) defines a unitary theory of quantum mechanics with positive norm. The proof of unitarity requires a linear operator [Formula: see text], which was originally defined as a sum over the eigenfunctions of H. However, using this definition to calculate [Formula: see text] is cumbersome in quantum mechanics and impossible in quantum field theory. I describe here an alternative method for calculating [Formula: see text] directly in terms of the operator dynamical variables of the quantum theory. This new method is general and applies to a variety of quantum mechanical systems having several degrees of freedom. More importantly, this method gives the [Formula: see text] operator in quantum field theory. The [Formula: see text] operator is a new time-independent observable in [Formula: see text]-symmetric quantum field theory.

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19

Werschnik, J., and E. K. U. Gross. "Quantum optimal control theory." Journal of Physics B: Atomic, Molecular and Optical Physics 40, no. 18 (2007): R175—R211. http://dx.doi.org/10.1088/0953-4075/40/18/r01.

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20

Chow, W. W., S. Michael, and H. C. Schneider. "Many-body theory of quantum coherence in semiconductor quantum dots." Journal of Modern Optics 54, no. 16-17 (2007): 2413–24. http://dx.doi.org/10.1080/09500340701639664.

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21

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 reproducing several observed phenomena thought to be uniquely quantum in nature, thus providing greater elucidation of the quantum-classical boundary.

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22

Milburn, G. J., T. Ralph, A. White, E. Knill, and R. Laflamme. "Efficient linear optics quantum computation." Quantum Information and Computation 1, Special (2001): 13–19. http://dx.doi.org/10.26421/qic1.s-4.

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Two qubit gates for photons are generally thought to require exotic materials with huge optical nonlinearities. We show here that, if we accept two qubit gates that only work conditionally, single photon sources, passive linear optics and particle detectors are sufficient for implementing reliable quantum algorithms. The conditional nature of the gates requires feed-forward from the detectors to the optical elements. Without feed forward, non-deterministic quantum computation is possible. We discuss one proposed single photon source based on the surface acoustic wave guiding of single electrons.

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23

James, M. R. "Optimal Quantum Control Theory." Annual Review of Control, Robotics, and Autonomous Systems 4, no. 1 (2021): 343–67. http://dx.doi.org/10.1146/annurev-control-061520-010444.

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This article explains some fundamental ideas concerning the optimal control of quantum systems through the study of a relatively simple two-level system coupled to optical fields. The model for this system includes both continuous and impulsive dynamics. Topics covered include open- and closed-loop control, impulsive control, open-loop optimal control, quantum filtering, and measurement feedback optimal control.

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24

Zheng, Qianbing, and Takayoshi Kobayashi. "Quantum Optics as a Relativistic Theory of Light." Physics Essays 9, no. 3 (1996): 447–59. http://dx.doi.org/10.4006/1.3029255.

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25

Chen, Feng, and Hong-Yi Fan. "New useful special function in quantum optics theory." Chinese Physics B 25, no. 8 (2016): 080303. http://dx.doi.org/10.1088/1674-1056/25/8/080303.

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26

Amin, Syed Tahir, and Aeysha Khalique. "Practical quantum teleportation of an unknown quantum state." Canadian Journal of Physics 95, no. 5 (2017): 498–503. http://dx.doi.org/10.1139/cjp-2016-0758.

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We present our model to teleport an unknown quantum state using entanglement between two distant parties. Our model takes into account experimental limitations due to contribution of multi-photon pair production of parametric down conversion source, inefficiency, dark counts of detectors, and channel losses. We use a linear optics setup for quantum teleportation of an unknown quantum state by the sender performing a Bell state measurement. Our theory successfully provides a model for experimentalists to optimize the fidelity by adjusting the experimental parameters. We apply our model to a recent experiment on quantum teleportation and the results obtained by our model are in good agreement with the experimental results.

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27

Garbers, Nicole, and Andreas Ruffing. "Using supermodels in quantum optics." Advances in Difference Equations 2006 (2006): 1–15. http://dx.doi.org/10.1155/ade/2006/72768.

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28

Wiseman, H. M. "Quantum theory of continuous feedback." Physical Review A 49, no. 3 (1994): 2133–50. http://dx.doi.org/10.1103/physreva.49.2133.

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29

Marquardt, Florian, A. A. Clerk, and S. M. Girvin. "Quantum theory of optomechanical cooling." Journal of Modern Optics 55, no. 19-20 (2008): 3329–38. http://dx.doi.org/10.1080/09500340802454971.

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30

Knight, Peter. "The Quantum Theory of Motion." Journal of Modern Optics 41, no. 1 (1994): 168–69. http://dx.doi.org/10.1080/09500349414550241.

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31

Wu, Xiang-Yao, Bai-Jun Zhang, Jing-Hai Yang, et al. "Quantum theory of light diffraction." Journal of Modern Optics 57, no. 20 (2010): 2082–91. http://dx.doi.org/10.1080/09500340.2010.521593.

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32

Selby, John H., Carlo Maria Scandolo, and Bob Coecke. "Reconstructing quantum theory from diagrammatic postulates." Quantum 5 (April 28, 2021): 445. http://dx.doi.org/10.22331/q-2021-04-28-445.

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A reconstruction of quantum theory refers to both a mathematical and a conceptual paradigm that allows one to derive the usual formulation of quantum theory from a set of primitive assumptions. The motivation for doing so is a discomfort with the usual formulation of quantum theory, a discomfort that started with its originator John von Neumann. We present a reconstruction of finite-dimensional quantum theory where all of the postulates are stated in diagrammatic terms, making them intuitive. Equivalently, they are stated in category-theoretic terms, making them mathematically appealing. Again equivalently, they are stated in process-theoretic terms, establishing that the conceptual backbone of quantum theory concerns the manner in which systems and processes compose. Aside from the diagrammatic form, the key novel aspect of this reconstruction is the introduction of a new postulate, symmetric purification. Unlike the ordinary purification postulate, symmetric purification applies equally well to classical theory as well as quantum theory. Therefore we first reconstruct the full process theoretic description of quantum theory, consisting of composite classical-quantum systems and their interactions, before restricting ourselves to just the ‘fully quantum’ systems as the final step. We propose two novel alternative manners of doing so, ‘no-leaking’ (roughly that information gain causes disturbance) and ‘purity of cups’ (roughly the existence of entangled states). Interestingly, these turn out to be equivalent in any process theory with cups & caps. Additionally, we show how the standard purification postulate can be seen as an immediate consequence of the symmetric purification postulate and purity of cups. Other tangential results concern the specific frameworks of generalised probabilistic theories (GPTs) and process theories (a.k.a. CQM). Firstly, we provide a diagrammatic presentation of GPTs, which, henceforth, can be subsumed under process theories. Secondly, we argue that the ‘sharp dagger’ is indeed the right choice of a dagger structure as this sharpness is vital to the reconstruction.

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33

Simon, David S., Gregg Jaeger, and Alexander V. Sergienko. "Quantum information in communication and imaging." International Journal of Quantum Information 12, no. 04 (2014): 1430004. http://dx.doi.org/10.1142/s0219749914300046.

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A brief introduction to quantum information theory in the context of quantum optics is presented. After presenting the fundamental theoretical basis of the subject, experimental evaluation of entanglement measures are discussed, followed by applications to communication and imaging.

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34

BENAOUM, H. B., and M. LAGRAA. "Uq(2) YANG–MILLS THEORY." International Journal of Modern Physics A 13, no. 04 (1998): 553–68. http://dx.doi.org/10.1142/s0217751x98000238.

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A Yang–Mills theory is presented using the Uq(2) quantum group. Unlike previous works, no assumptions are required — between the quantum gauge parameters and the quantum gauge fields (or curvature) — to get the quantum gauge variations of the different fields. Furthermore, an adequate definition of the quantum trace is presented. Such a definition leads to a quantum metric, which therefore allows us to construct a Uq(2) quantum Yang–Mills Lagrangian. The Weinberg angle θ is found in terms of this q metric to be [Formula: see text].

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35

Barnett, Stephen M., and D. T. Pegg. "Quantum theory of optical phase correlations." Physical Review A 42, no. 11 (1990): 6713–20. http://dx.doi.org/10.1103/physreva.42.6713.

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36

Zhang, Weiping. "Vector Quantum Field Theory of Atoms: Nonlinear Atom Optics and Bose - Einstein Condensate." Australian Journal of Physics 49, no. 4 (1996): 819. http://dx.doi.org/10.1071/ph960819.

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The recent experimental progress in laser cooling and trapping of neutral atoms brings the atomic samples into the ultracold regime where the bosonic atoms and fermionic atoms are expected to have different dynamic behaviours in the laser fields. In this paper we systematically introduce the theoretical study of interaction of an ultracold atomic ensemble with a light wave in the frame of a vector quantum field theory. The many-body quantum correlation in the ultracold regime of atom optics is studied in terms of vector quantum field theory. A general formalism of nonlinear atom optics for a coherent atomic beam is developed.

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37

Bykov, V. P. "Laser investigations and quantum theory." Journal of Russian Laser Research 18, no. 3 (1997): 260–75. http://dx.doi.org/10.1007/bf02558704.

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38

Brown, S. A., and B. J. Dalton. "Generalized quasi mode theory of macroscopic canonical quantization in cavity quantum electrodynamics and quantum optics I. Theory." Journal of Modern Optics 48, no. 4 (2001): 597–618. http://dx.doi.org/10.1080/09500340108230935.

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39

CALARCO, T., M. A. CIRONE, M. COZZINI, A. NEGRETTI, A. RECATI, and E. CHARRON. "QUANTUM CONTROL THEORY FOR DECOHERENCE SUPPRESSION IN QUANTUM GATES." International Journal of Quantum Information 05, no. 01n02 (2007): 207–13. http://dx.doi.org/10.1142/s0219749907002645.

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We show how quantum optimal control theory can help achieve high-fidelity quantum gates in real experimental settings. We discuss several optimization methods (from iterative algorithms to optimization by interference and to impulsive control) and different physical scenarios (from optical lattices to atom chips and to Rydberg atoms).

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40

Dalton, B. J., Stephen M. Barnett, and P. L. Knight. "Quasi mode theory of macroscopic canonical quantization in quantum optics and cavity quantum electrodynamics." Journal of Modern Optics 46, no. 9 (1999): 1315–41. http://dx.doi.org/10.1080/09500349908231338.

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41

Aitchison, I. J. R. "Berry's Topological Phase in Quantum Mechanics and Quantum Field Theory." Physica Scripta T23 (January 1, 1988): 12–20. http://dx.doi.org/10.1088/0031-8949/1988/t23/002.

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42

Sabbadini, Shantena A., and Giuseppe Vitiello. "Entanglement and Phase-Mediated Correlations in Quantum Field Theory. Application to Brain-Mind States." Applied Sciences 9, no. 15 (2019): 3203. http://dx.doi.org/10.3390/app9153203.

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The entanglement phenomenon plays a central role in quantum optics and in basic aspects of quantum mechanics and quantum field theory. We review the dissipative quantum model of brain and the role of the entanglement in the brain-mind activity correlation and in the formation of assemblies of coherently-oscillating neurons, which are observed to appear in different regions of the cortex by use of EEG, ECoG, fNMR, and other observational methods in neuroscience.

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43

Shapiro, J. H. "The Quantum Theory of Optical Communications." IEEE Journal of Selected Topics in Quantum Electronics 15, no. 6 (2009): 1547–69. http://dx.doi.org/10.1109/jstqe.2009.2024959.

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44

Gracey, J. A. "Large Nf quantum field theory." International Journal of Modern Physics A 33, no. 35 (2018): 1830032. http://dx.doi.org/10.1142/s0217751x18300326.

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We review the development of the large [Formula: see text] method, where [Formula: see text] indicates the number of flavours, used to study perturbative and nonperturbative properties of quantum field theories. The relevant historical background is summarized as a prelude to the introduction of the large [Formula: see text] critical point formalism. This is used to compute large [Formula: see text] corrections to [Formula: see text]-dimensional critical exponents of the universal quantum field theory present at the Wilson–Fisher fixed point. While pedagogical in part the application to gauge theories is also covered and the use of the large [Formula: see text] method to complement explicit high order perturbative computations in gauge theories is also highlighted. The usefulness of the technique in relation to other methods currently used to study quantum field theories in [Formula: see text]-dimensions is also summarized.

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45

KIRA, M., F. JAHNKE, and S. W. KOCH. "QUANTUM THEORY OF PHOTOLUMINESCENCE FOR COHERENTLY EXCITED SEMICONDUCTOR QUANTUM-WELL SYSTEMS." Journal of Nonlinear Optical Physics & Materials 08, no. 01 (1999): 21–40. http://dx.doi.org/10.1142/s0218863599000035.

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Photoluminescence of semiconductor quantum wells is studied using a fully quantized theory for the light-matter interaction. Quantum fluctuations of the light field lead to direct coupling between a coherent excitation and luminescence in other directions. Numerical results for the time evolution of the luminescence spectrum and emission intensity dynamics after a femtosecond pulse excitation are presented.

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46

Varró, Sándor. "Quantum Optical Aspects of High-Harmonic Generation." Photonics 8, no. 7 (2021): 269. http://dx.doi.org/10.3390/photonics8070269.

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The interaction of electrons with strong laser fields is usually treated with semiclassical theory, where the laser is represented by an external field. There are analytic solutions for the free electron wave functions, which incorporate the interaction with the laser field exactly, but the joint effect of the atomic binding potential presents an obstacle for the analysis. Moreover, the radiation is a dynamical system, the number of photons changes during the interactions. Thus, it is legitimate to ask how can one treat the high order processes nonperturbatively, in such a way that the electron-atom interaction and the quantized nature of radiation be simultaneously taken into account? An analytic method is proposed to answer this question in the framework of nonrelativistic quantum electrodynamics. As an application, a quantum optical generalization of the strong-field Kramers-Heisenberg formula is derived for describing high-harmonic generation. Our formalism is suitable to analyse, among various quantal effects, the possible role of arbitrary photon statistics of the incoming field. The present paper is dedicated to the memory of Prof. Dr. Fritz Ehlotzky, who had significantly contributed to the theory of strong-field phenomena over many decades.

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47

Jali, V. M., S. S. Kubakaddi, and B. G. Mulimani. "Quantum Theory of Thermopower in Quantum Well Wires." physica status solidi (b) 144, no. 2 (1987): 739–44. http://dx.doi.org/10.1002/pssb.2221440233.

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48

Brown, Robert G., and Mikael Ciftan. "N-atom optical Bloch equations: A microscopic theory of quantum optics." Physical Review A 40, no. 6 (1989): 3080–105. http://dx.doi.org/10.1103/physreva.40.3080.

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49

Feldman, M. "Quantum noise in the quantum theory of mixing." IEEE Transactions on Magnetics 23, no. 2 (1987): 1054–57. http://dx.doi.org/10.1109/tmag.1987.1065089.

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50

Schuch, Dieter. "Is quantum theory intrinsically nonlinear?" Physica Scripta 87, no. 3 (2013): 038117. http://dx.doi.org/10.1088/0031-8949/87/03/038117.

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