Relevant bibliographies by topics / Quantum breathers

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Quantum breathers'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Quantum breathers"

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Martinez-Galicia, R., and Panayotis Panayotaros. "Coherent states and localization in a quantized discrete NLS lattice." Journal of Nonlinear Optical Physics & Materials 25, no. 04 (December 2016): 1650047. http://dx.doi.org/10.1142/s0218863516500478.

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We study the evolution of a quantum discrete nonlinear Schrödinger (DNLS) system using as initial conditions coherent states corresponding to points in the vicinity of breather solutions of the classical system. We consider various examples of stable and unstable breathers and examine the distance between exactly evolved states and coherent states with parameters that evolve according to classical dynamics. Initial conditions near stable breathers and their vicinity are seen to lead to recurrences to small distances between the two evolving states. Similar recurrences are not observed for initial conditions near unstable breathers.
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Tang, Bing, De-Jun Li, and Yi Tang. "Quantum breathers in ferromagnetic chains with on-site easy axis anisotropy." Canadian Journal of Physics 91, no. 10 (October 2013): 788–92. http://dx.doi.org/10.1139/cjp-2013-0044.

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Quantum breathers in one-dimensional ferromagnetic chains with on-site easy axis anisotropy are investigated analytically. Based on the Hartree approximation, we can work out the case of quantum breathers with a large number of quanta. By using the multiple-scale method combined with the semidiscrete approximation, the nonlinear Schrödinger equation is derived. It is shown that quantum breathers can exist in the Heisenberg ferromagnetic chain. In addition, we obtain the energy level formula of quantum breathers, which indicates that the energy of such quantum breathers is quantized.
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Gutierrez, Hernan Oscar Cortez, Milton Milciades Cortez Gutierrez, Girady Iara Cortez Fuentes Rivera, Liv Jois Cortez Fuentes Rivera, and Deolinda Fuentes Rivera Vallejo. "Dark breather using symmetric Morse, solvent and external potentials for DNA breathing." Eclética Química Journal 43, no. 4 (December 5, 2018): 44. http://dx.doi.org/10.26850/1678-4618eqj.v43.4.2018.p43-48.

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We analyze the dynamics and the quantum thermodynamics of DNA in Symmetric-Peyrard-Bishop-Dauxois model (S-PBD) with solvent and external potentials and describe the transient conformational fluctuations using dark breather and the ground state wave function of the associate Schrodinger differential equation. We used the S-PBD, the Floquet theory, quantum thermodynamic and finite difference methods. We show that for lower coupling dark breather is present. We estimate the fluctuations or breathing of DNA. For the S-PBD model we have the stability of dark breather for k<0.004 and mobile breathers with coupling k=0.004. The fluctuations of the dark breather in the S-PBD model is approximately zero with the quantum thermodynamics. The viscous and external potential effect is direct proportional to hydrogen bond stretching.
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Gutierrez, Hernan Oscar Cortez, Milton Milciades Cortez Gutierrez, Girady Iara Cortez Fuentes Rivera, Liv Jois Cortez Fuentes Rivera, and Deolinda Fuentes Rivera Vallejo. "Dark breather using symmetric Morse, solvent and external potentials for DNA breathing." Eclética Química Journal 43, no. 4 (January 7, 2019): 44. http://dx.doi.org/10.26850/1678-4618eqj.v43.4.2018.p44-49.

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We analyze the dynamics and the quantum thermodynamics of DNA in Symmetric-Peyrard-Bishop-Dauxois model (S-PBD) with solvent and external potentials and describe the transient conformational fluctuations using dark breather and the ground state wave function of the associate Schrodinger differential equation. We used the S-PBD, the Floquet theory, quantum thermodynamic and finite difference methods. We show that for lower coupling dark breather is present. We estimate the fluctuations or breathing of DNA. For the S-PBD model we have the stability of dark breather for k<0.004 and mobile breathers with coupling k=0.004. The fluctuations of the dark breather in the S-PBD model is approximately zero with the quantum thermodynamics. The viscous and external potential effect is direct proportional to hydrogen bond stretching.
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MacKay, R. S. "Discrete breathers: classical and quantum." Physica A: Statistical Mechanics and its Applications 288, no. 1-4 (December 2000): 174–98. http://dx.doi.org/10.1016/s0378-4371(00)00421-0.

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Tang, Bing, and De-Jun Li. "Quantum breathers in XXZ ferromagnetic chains with on-site easy-plane anisotropy." International Journal of Modern Physics B 30, no. 17 (June 30, 2016): 1650100. http://dx.doi.org/10.1142/s0217979216501009.

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The existence and properties of quantum breathers in a one-dimensional XXZ ferromagnetic Heisenberg spin chain with single-ion easy-plane anisotropy are investigated analytically in the Hartree approximation. We show that the system can support the appearance of quantum breathers, and discuss their existence conditions and properties. In addition, our results show that, for quantum breathers in this system, both the corresponding energy and magnetic moment are quantized.
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Yu, Dang-Jun, and Jie-Fang Zhang. "Rogue Wave and Breather Structures with “High Frequency” and “Low Frequency” in 𝒫𝒯-Symmetric Nonlinear Couplers with Gain and Loss." Zeitschrift für Naturforschung A 71, no. 10 (October 1, 2016): 961–69. http://dx.doi.org/10.1515/zna-2016-0229.

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AbstractBased on the modified Darboux transformation method, starting from zero solution and the plane wave solution, the hierarchies of rational solutions and breather solutions with “high frequency” and “low frequency” of the coupled nonlinear Schrödinger equation in parity-time symmetric nonlinear couplers with gain and loss are constructed, respectively. From these results, some basic characteristics of multi-rogue waves and multi-breathers are studied. Based on the property of rogue wave as the “quantum” of pattern structure in rogue wave hierarchy, we further study the novel structures of the superposed Akhmediev breathers, Kuznetsov-Ma solitons and their combined structures. It is expected that these results may give new insight into the context of the optical communications and Bose-Einstein condensations.
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Dubinko, V. I. "Quantum tunneling in gap discrete breathers." Letters on Materials 5, no. 1 (2015): 97–104. http://dx.doi.org/10.22226/2410-3535-2015-1-97-104.

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Wang, W. Z., J. Tinka Gammel, A. R. Bishop, and M. I. Salkola. "Quantum Breathers in a Nonlinear Lattice." Physical Review Letters 76, no. 19 (May 6, 1996): 3598–601. http://dx.doi.org/10.1103/physrevlett.76.3598.

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Wang, W. Z., A. R. Bishop, J. T. Gammel, and R. N. Silver. "Quantum Breathers in Electron-Phonon Systems." Physical Review Letters 80, no. 15 (April 13, 1998): 3284–87. http://dx.doi.org/10.1103/physrevlett.80.3284.

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Dissertations / Theses on the topic "Quantum breathers"

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Pinto, Rengifo Ricardo Alberto. "Quantum breathers in small networks: Dynamics, tunneling, correlations, and application to Josephson cells." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2008. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1216216146408-01075.

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We address the excitation of quantum breathers in small nonlinear networks of two and three degrees of freedom, in order to study their properties. The invariance under permutation of two sites of these networks substitutes the translation invariance that is present in nonlinear lattices, where (classical) discrete breathers are time periodic space localized solutions of the underlying classical equations of motion. We do a systematic analysis of the spectrum and eigenstates of such small systems, characterizing quantum breather states by their tunnelling rate (energy splitting), site correlations, fluctuations of the number of quanta, and entanglement. We observe how these properties are reflected in the time evolution of initially localized excitations. Quantum breathers manifest as pairs of nearly degenerate eigenstates that show strong site correlation of quanta, and are characterized by a strong excitation of quanta on one site of the network which perform slow coherent tunnelling motion from one site to another. They enhance the fluctuations of quanta, and are the least entangled states among the group of eigenstates in the same range of the energy spectrum. We use our analysis methods to consider the excitation of quantum breathers in a cell of two coupled Josephson junctions, and study their properties as compared with those in the previous cases. We describe how quantum breathers could be experimentally observed by employing the already developed techniques for quantum information processing with Josephson junctions.
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Jason, Peter. "Comparisons between classical and quantum mechanical nonlinear lattice models." Licentiate thesis, Linköpings universitet, Teoretisk Fysik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-105817.

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In the mid-1920s, the great Albert Einstein proposed that at extremely low temperatures, a gas of bosonic particles will enter a new phase where a large fraction of them occupy the same quantum state. This state would bring many of the peculiar features of quantum mechanics, previously reserved for small samples consisting only of a few atoms or molecules, up to a macroscopic scale. This is what we today call a Bose-Einstein condensate. It would take physicists almost 70 years to realize Einstein's idea, but in 1995 this was finally achieved. The research on Bose-Einstein condensates has since taken many directions, one of the most exciting being to study their behavior when they are placed in optical lattices generated by laser beams. This has already produced a number of fascinating results, but it has also proven to be an ideal test-ground for predictions from certain nonlinear lattice models. Because on the other hand, nonlinear science, the study of generic nonlinear phenomena, has in the last half century grown out to a research field in its own right, influencing almost all areas of science and physics. Nonlinear localization is one of these phenomena, where localized structures, such as solitons and discrete breathers, can appear even in translationally invariant systems. Another one is the (in)famous chaos, where deterministic systems can be so sensitive to perturbations that they in practice become completely unpredictable. Related to this is the study of different types of instabilities; what their behavior are and how they arise. In this thesis we compare classical and quantum mechanical nonlinear lattice models which can be applied to BECs in optical lattices, and also examine how classical nonlinear concepts, such as localization, chaos and instabilities, can be transfered to the quantum world.
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Arceci, Luca. "Quantum solitons in the XXZ model with staggered external magnetic field." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/7612/.

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The 1-D 1/2-spin XXZ model with staggered external magnetic field, when restricting to low field, can be mapped into the quantum sine-Gordon model through bosonization: this assures the presence of soliton, antisoliton and breather excitations in it. In particular, the action of the staggered field opens a gap so that these physical objects are stable against energetic fluctuations. In the present work, this model is studied both analytically and numerically. On the one hand, analytical calculations are made to solve exactly the model through Bethe ansatz: the solution for the XX + h staggered model is found first by means of Jordan-Wigner transformation and then through Bethe ansatz; after this stage, efforts are made to extend the latter approach to the XXZ + h staggered model (without finding its exact solution). On the other hand, the energies of the elementary soliton excitations are pinpointed through static DMRG (Density Matrix Renormalization Group) for different values of the parameters in the hamiltonian. Breathers are found to be in the antiferromagnetic region only, while solitons and antisolitons are present both in the ferromagnetic and antiferromagnetic region. Their single-site z-magnetization expectation values are also computed to see how they appear in real space, and time-dependent DMRG is employed to realize quenches on the hamiltonian parameters to monitor their time-evolution. The results obtained reveal the quantum nature of these objects and provide some information about their features. Further studies and a better understanding of their properties could bring to the realization of a two-level state through a soliton-antisoliton pair, in order to implement a qubit.
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Pinto, Rengifo Ricardo Alberto [Verfasser]. "Quantum breathers in small networks: dynamics, tunneling, correlations, and application to Josephson cells / vorgelegt von Ricardo Alberto Pinto Rengifo." 2008. http://d-nb.info/990097331/34.

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Hennig, Holger. "Scale-free Fluctuations in in Bose-Einstein Condensates, Quantum Dots and Music Rhythms." Doctoral thesis, 2009. http://hdl.handle.net/11858/00-1735-0000-0006-B4C1-5.

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Book chapters on the topic "Quantum breathers"

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Mandal, Bijoy, Reshmi Basu, Kamal Chowdhury, Arindam Biswas, A. K. Bandyopadhyay, A. K. Bhattacharjee, and D. Mandal. "Quantum Breathers in Nonlinear Metamaterials." In Springer Proceedings in Physics, 539–44. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-34216-5_53.

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Biswas, Arindam, K. Choudhury, A. K. Bandyopadhyay, A. K. Bhattacharjee, and D. Mandal. "Quantum Breathers in Lithium Tantalate in Klein-Gordon Lattice." In Springer Proceedings in Physics, 545–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-34216-5_54.

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Fillaux, François, Colin J. Carlile, and Gordon J. Kearley. "Inelastic Neutron Scattering Study of the Quantum Sine-Gordon Breather in 4-Methyl-Pyridine." In NATO ASI Series, 465–68. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4899-1609-9_74.

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Pinto, Ricardo, and Sergej Flach. "Quantum Discrete Breathers." In Dynamical Tunneling, 339–81. CRC Press, 2011. http://dx.doi.org/10.1201/b10712-15.

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"Quantum Discrete Breathers." In Dynamical Tunneling, 353–96. CRC Press, 2011. http://dx.doi.org/10.1201/b10712-19.

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"BREATHERS FORM FACTORS IN SG MODEL." In Form Factors in Completely Integrable Models of Quantum Field Theory, 69–79. WORLD SCIENTIFIC, 1992. http://dx.doi.org/10.1142/9789812798312_0006.

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"Quantum Breathers and Phonon Bound State in the Ferroelectric System." In Computational and Experimental Chemistry, 265–98. Apple Academic Press, 2013. http://dx.doi.org/10.1201/b15459-19.

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Conference papers on the topic "Quantum breathers"

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Erkintalo, Miro, Goery Genty, Benjamin Wetzel, and John M. Dudley. "Akhmediev breathers and pulsed modulation instability." In 12th European Quantum Electronics Conference CLEO EUROPE/EQEC. IEEE, 2011. http://dx.doi.org/10.1109/cleoe.2011.5943542.

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Schiek, Roland, and Fabio Baronio. "Spatial Akhmediev Breathers in Slab Waveguides." In 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, 2019. http://dx.doi.org/10.1109/cleoe-eqec.2019.8872896.

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Biswas, Arindam, A. K. Bandhyoapdhyay, Susmita Biswas, A. K. Bhattacharjee, and Durbadal Mandal. "Classical and quantum breathers: Application in photonics for ferroelectrics." In 2012 International Conference on Communications, Devices and Intelligent Systems (CODIS). IEEE, 2012. http://dx.doi.org/10.1109/codis.2012.6422234.

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Erkintalo, Miro, Goery Genty, Benjamin Wetzel, and John M. Dudley. "Frequencydoubling and recurrence phenomena in Akhmediev breathers pulse trains." In 12th European Quantum Electronics Conference CLEO EUROPE/EQEC. IEEE, 2011. http://dx.doi.org/10.1109/cleoe.2011.5943560.

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Franzosi, R., S. Iubini, R. Livi, A. Politi, and G. L. Oppo. "Relaxation to negative temperature breathers in Bose-Einstein Condensates in optical lattices." In 12th European Quantum Electronics Conference CLEO EUROPE/EQEC. IEEE, 2011. http://dx.doi.org/10.1109/cleoe.2011.5943305.

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Epstein, Itai, Haim Suchowski, Dror Weisman, and Ady Arie. "Observation of plasmonic breathers propagation in a two-level system." In 2017 Conference on Lasers and Electro-Optics Europe (CLEO/Europe) & European Quantum Electronics Conference (EQEC). IEEE, 2017. http://dx.doi.org/10.1109/cleoe-eqec.2017.8087662.

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Chirondojan, Liviu F., Antonio Politi, and Gian-Luca Oppo. "Symmetry breaking in the discrete nonlinear Schrödinger equation due to localised breathers." In 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, 2017. http://dx.doi.org/10.1109/cleoe-eqec.2017.8087446.

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Campbell, R., M. Borkowski, and G. L. Oppo. "Collision of discrete breathers in two-species Bose-Einstein condensates in optical lattices." In 2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC. IEEE, 2013. http://dx.doi.org/10.1109/cleoe-iqec.2013.6801749.

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Naveau, Corentin, Pascal Szriftgiser, Alexandre Kudlinski, Matteo Conforti, Stefano Trillo, and Arnaud Mussot. "Spatio-Temporal Characterization of the Electric Field of Breathers in an Optical Fiber." In 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, 2019. http://dx.doi.org/10.1109/cleoe-eqec.2019.8871736.

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Lebel, Alexandre, Alexey Tikan, Stephane Randoux, Pierre Suret, and Francois Copie. "Single-Shot Time-Resolved Phase and Intensity Measurement of Breathers in the Nonlinear Stage of Modulation Instability." In 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, 2019. http://dx.doi.org/10.1109/cleoe-eqec.2019.8872934.

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