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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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Dynamics of defect-induced dark solitons in an exciton-polariton condensate
TL;DR: In this article, the emission of dark solitons induced by a moving defect in a nonresonantly pumped exciton-polariton condensate was investigated and an analytical expression for dark soliton dynamics using the variational method adapted to the non-equilibrium polariton system was derived.
Journal ArticleDOI
Pump-and-probe optical transmission phase shift as a quantitative probe of the Bogoliubov dispersion relation in a nonlinear channel waveguide
TL;DR: In this paper, the dispersion relation of small-amplitude optical waves superimposing upon a beam of polarized monochromatic light propagating along a single-mode channel waveguide characterized by an instantaneous and spatially local Kerr nonlinearity is investigated.
Journal ArticleDOI
High-energy side-peak emission of exciton-polariton condensates in high density regime
Tomoyuki Horikiri,Makoto Yamaguchi,Kenji Kamide,Yasuhiro Matsuo,Tim Byrnes,Natsuko Ishida,Andreas Löffler,Sven Höfling,Yutaka Shikano,Tetsuo Ogawa,Alfred Forchel,Yoshihisa Yamamoto +11 more
TL;DR: In this article, a photoluminescence sideband at high densities that cannot be accounted for by conventional semiconductor lasing was observed, which was interpreted as a persistent coherent electron-hole-photon coupling.
Journal ArticleDOI
Engineering photonic environments for two-dimensional materials
Xuezhi Ma,Nathan Youngblood,Xiaoze Liu,Yan Cheng,Preston Cunha,Kaushik Kudtarkar,Xiaomu Wang,Shoufeng Lan +7 more
TL;DR: In this article, the authors review the three degrees of freedom of this interaction: weak coupling, strong coupling, and multi-functionality, and review a relatively timing concept of engineering that directly applied to the 2D materials by patterning.
Journal ArticleDOI
Quantum fluctuations in a strongly interacting Bardeen-Cooper-Schrieffer polariton condensate at thermal equilibrium
Hui Hu,Xia-Ji Liu +1 more
TL;DR: In this article, the role of quantum fluctuations in an exciton-polariton condensate at thermal equilibrium and determine the number of different types of carriers at the crossover beyond mean field.
References
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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.