Journal ArticleDOI
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
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Quantum simulation of zero-temperature quantum phases and incompressible states of light via non-Markovian reservoir engineering techniques
José Lebreuilly,Iacopo Carusotto +1 more
TL;DR: In this article, a non-Markovian reservoir engineering technique is proposed for stabilizing strongly correlated quantum fluids of light in driven-dissipative photonic devices through novel nonMarkovians reservoir engineering techniques.
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Unified theory for excited-state, fragmented, and equilibriumlike Bose condensation in pumped photonic many-body systems
TL;DR: Galbiati et al. as discussed by the authors derived a theory for Bose condensation in nonequilibrium steady states of bosonic quantum gases that are coupled both to a thermal heat bath and to a pumped reservoir (or gain medium), while suffering from loss.
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Effective theory for ultracold strongly interacting fermionic atoms in two dimensions
TL;DR: In this paper, the authors propose a minimal theoretical model for the description of a 2D strongly interacting Fermi gas confined transversely in a tight harmonic potential, and present accurate predictions for its zero-temperature equation of state and breathing mode frequency based on existing auxiliary-field quantum Monte Carlo data.
Journal ArticleDOI
Condensed exciton polaritons in a two-dimensional trap: Elementary excitations and shaping by a Gaussian pump beam
Y. Núñez Fernández,Y. Núñez Fernández,Mikhail Vasilevskiy,Carlos Trallero-Giner,Alexey Kavokin +4 more
TL;DR: In this article, an exciton-polariton condensate (EPC) confined in a parabolic two-dimensional trap is considered theoretically, where the nonlinear term in the Gross-Pitaevskii equation describing the properties of the Condensate can be considered as a perturbation with respect to the trapping potential, which allows for a convenient analytical description of the ground state and Bogolyubov-type elementary excitations around it.
Journal ArticleDOI
Demonstration of a polariton step potential by local variation of light-matter coupling in a van-der-Waals heterostructure.
Christoph Rupprecht,Martin Klaas,Heiko Knopf,Takashi Taniguchi,Kenji Watanabe,Ying Qin,Sefaattin Tongay,Sven Schröder,Falk Eilenberger,Sven Höfling,Christian Schneider +10 more
TL;DR: In this paper, it was shown that locally changing the number of layers in a WSe2/hBN/WSe2 van-der-Waals heterostructure embedded in a monolithic, high-quality-factor cavity gives rise to a local variation of the coupling strength.
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.
Journal ArticleDOI
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.