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Exciton-polariton Bose-Einstein condensation
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In this article, the authors reviewed recent experiments and corresponding theoretical pictures based on the Gross-Pitaevskii equations and the Boltzmann kinetic simulations for a finite-size BEC of polaritons.Abstract:
In the past decade, a two-dimensional matter-light system called the microcavity exciton-polariton has emerged as a new promising candidate of Bose-Einstein condensation BEC in solids. Many pieces of important evidence of polariton BEC have been established recently in GaAs and CdTe microcavities at the liquid helium temperature, opening a door to rich many-body physics inaccessible in experiments before. Technological progress also made polariton BEC at room temperatures promising. In parallel with experimental progresses, theoretical frameworks and numerical simulations are developed, and our understanding of the system has greatly advanced. In this article, recent experiments and corresponding theoretical pictures based on the Gross-Pitaevskii equations and the Boltzmann kinetic simulations for a finite-size BEC of polaritons are reviewed.read more
Citations
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Generation of superfluorescent bursts from a fully tunable semiconductor magneto‐plasma
G. T. Noe,Ji-Hee Kim,Jinho Lee,Young-Dahl Jho,Yongrui Wang,Aleksander K. Wójcik,Stephen McGill,David H. Reitze,Alexey Belyanin,Junichiro Kono +9 more
TL;DR: In this paper, it was shown that super-uorescence can also be obtained in an optically excited semiconductor quantum well in a high magnetic field, and the burst of coherent radiation was observed in a solid-state setting.
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Temperature quantum sensor on superradiant phase-transition
TL;DR: In this paper, a superradiant phase-transition (SPT) phenomena for high-precision quantum thermometry applications is studied. But the authors focus on the second order phase transition.
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Non-conservative variational approximation for nonlinear Schrödinger equations
TL;DR: In this article, a non-conservative variational approximation (NCVA) was proposed for complex partial differential equations of the nonlinear Schrodinger (NLS) type, examining the dynamics of the coherent solitary wave structures of such models.
Journal ArticleDOI
Nonlinear eigenmodes of a non-equilibrium harmonic oscillator
TL;DR: In this paper, a perturbation theory for approximate solutions to this non-equilibrium condensate model was developed and compared with numerically calculated solutions for both repulsive and attractive polariton-polariton interactions.
Journal ArticleDOI
Polariton-polariton interaction beyond the Born approximation: A toy model study
Hui Hu,Hui Deng,Xia-Ji Liu +2 more
TL;DR: In this article, the authors theoretically investigate the polariton-polariton interaction in microcavities beyond the commonly used Born approximation (i.e., mean field), by adopting a toy model with a contact interaction to approximately describe the attraction between electrons and holes in quantum well and by using a Gaussian pair fluctuation theory beyond mean field.
References
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Journal ArticleDOI
Ordering, metastability and phase transitions in two-dimensional systems
TL;DR: In this article, a new definition of order called topological order is proposed for two-dimensional systems in which no long-range order of the conventional type exists, and the possibility of a phase transition characterized by a change in the response of the system to an external perturbation is discussed in the context of a mean field type of approximation.
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Absence of Ferromagnetism or Antiferromagnetism in One- or Two-Dimensional Isotropic Heisenberg Models
N. D. Mermin,Herbert Wagner +1 more
TL;DR: In this paper, it is rigorously proved that at any nonzero temperature, a one- or two-dimensional isotropic spin-S$ Heisenberg model with finite-range exchange interaction can be neither ferromagnetic nor antiferromagnetic.
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Quantum Phase Transition From a Superfluid to a Mott Insulator in a Gas of Ultracold Atoms
TL;DR: This work observes a quantum phase transition in a Bose–Einstein condensate with repulsive interactions, held in a three-dimensional optical lattice potential, and can induce reversible changes between the two ground states of the system.
Bose-Einstein condensation in dilute gases
TL;DR: In this paper, a unified introduction to the physics of ultracold atomic Bose and Fermi gases for advanced undergraduate and graduate students, as well as experimentalists and theorists is provided.