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Condensation of exciton-polaritons in semiconductor microcavities takes place despite in plane disorder. Below the critical density the inhomogeneity of the potential seen by the polaritons strongly limits the spatial extension of the…

Other Condensed Matter · Physics 2009-11-13 A. Baas , K. G. Lagoudakis , M. Richard , R. Andre , Le Si Dang , B. Deveaud-Pledran

We review some theories of non-equilibrium Bose-Einstein condensates in potentials, in particular of the Bose-Einstein condensate of polaritons. We discuss such condensates, which are steady-states established through a balance of gain and…

Mesoscale and Nanoscale Physics · Physics 2017-05-04 Paul R. Eastham , Bernd Rosenow

The phase and the frequency of an exciton polariton condensate excited by a nonresonant pump can be efficiently manipulated by an external coherent light. Being tuned close to the resonance with the condensate eigenfrequency, the external…

Mesoscale and Nanoscale Physics · Physics 2020-12-07 I. Y. Chestnov , A. V. Kanokin , A. V. Yulin

We present a theoretical study of synchronization dynamics in incoherently pumped exciton-polariton condensates in coupled polariton traps. Our analysis is based on a coupled-mode theory for the generalized Gross-Pitaevskii equation, which…

Mesoscale and Nanoscale Physics · Physics 2017-11-03 Saeed Khan , Hakan E. Türeci

The first realization of a polariton condensate was recently achieved in a CdTe microcavity [Kasprzak et al., Nature 443, 409 (2006)]. We compare the experimental phase boundaries, for various detunings and cryostat temperatures, with those…

Mesoscale and Nanoscale Physics · Physics 2008-06-23 F. M. Marchetti , M. H. Szymanska , J. Keeling , J. Kasprzak , R. Andre , P. B. Littlewood , Le Si Dang

We develop a mean-field theory of the spatial profile and the spectral properties of polariton condensates in nonresonantly pumped semiconductor microcavities in the strong coupling regime. Predictions are obtained for both the…

Other Condensed Matter · Physics 2009-11-13 M. Wouters , I. Carusotto , C. Ciuti

Replacing independent single quantum wells inside a strongly-coupled semiconductor microcavity with double quantum wells produces a special type of polariton. Using asymmetric double quantum wells in devices processed into mesas allows the…

We investigate the dynamics and stationary states of a semiconductor exciton-polariton condensate in a double well potential. We find that upon the population build up of the polaritons by above-threshold laser pumping, coherence relaxation…

Quantum Physics · Physics 2021-08-16 Panayotis A. Kalozoumis , David Petrosyan

We study the hybrid exciton-polaritons in a bad microcavity containing the organic and inorganic quantum wells. The corresponding polariton states are given. The analytical solution and the numerical result of the stationary spectrum for…

Quantum Physics · Physics 2015-06-26 Yu-Xi Liu , Chang-pu Sun

We investigate, theoretically and numerically, the spin dynamics of a two-component exciton-polariton condensate created and sustained by non-resonant spin-polarized optical pumping of a semiconductor microcavity. Using the open-dissipative…

Quantum Gases · Physics 2015-08-26 G. Li , T. C. H. Liew , O. A. Egorov , E. A. Ostrovskaya

Polariton condensates occur away from thermal equilibrium, in an open system where heat and particles are continually exchanged with reservoirs. These phenomena have been extensively analyzed in terms of kinetic equations. Based on the…

Quantum Physics · Physics 2024-10-08 Luisa Toledo Tude , Paul R. Eastham

The influence of polariton-polariton scattering on the statistics of the polariton condensate in a non-resonantly excited semiconductor quantum well embedded in a CdTe semiconductor microcavity is discussed. Taking advantage of the…

Other Condensed Matter · Physics 2009-11-13 Paolo Schwendimann , Antonio Quattropani

We present a microscopic theory of the equilibrium polariton condensate state of a semiconductor quantum well in a planar optical cavity. The theory accounts for the adjustment of matter excitations to the presence of a coherent photon…

Mesoscale and Nanoscale Physics · Physics 2016-12-07 Fei Xue , Fengcheng Wu , Ming Xie , Jung-Jung Su , A. H. MacDonald

Recently, a novel mixed-synchronization phenomenon is observed in counter-rotating nonlinear coupled oscillators. In mixed-synchronization state: some variables are synchronized in-phase, while others are out-of-phase. We have…

Chaotic Dynamics · Physics 2011-05-31 Amit Sharma , Manish Dev Shrimali

We study the nonequilibrium exciton-polariton condensation in 1D to 0D and 1D to 2D junctions by means of non-resonant spectroscopy. The shape of our potential landscape allows to probe the resonant transmission of a propagating condensate…

Mesoscale and Nanoscale Physics · Physics 2017-05-24 K. Winkler , H. Flayac , S. Klembt , A. Schade , D. Nevinskiy , M. Kamp , C. Schneider , S. Höfling

Condensation of microcavity polaritons and the substantial influence of pair-breaking disorder and decoherence leading to a laser regime has been recently considered using two different models: a model for direct two band excitons in a…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 F. M. Marchetti , M. H. Szymanska , P. R. Eastham , B. D. Simons , P. B. Littlewood

We report on the observation of spontaneous coherent oscillations in a microcavity polariton bosonic Josephson junction. The condensation of exciton polaritons takes place under incoherent excitation in a disordered environment, where…

Quantum Gases · Physics 2010-09-23 K. G. Lagoudakis , B. Pietka , M. Wouters , R. André , B. Deveaud-Plédran

A model for direct two band excitons in a disordered quantum well coupled to light in a cavity is investigated. In the limit in which the exciton density is high, we assess the impact of weak `pair-breaking' disorder on the feasibility of…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 F. M. Marchetti , B. D. Simons , P. B. Littlewood

We investigate the process of coarsening via annihilation of vortex-antivortex pairs, following the quench to the condensate phase in a nonresonantly pumped polariton system. We find that the late-time dynamics is an example of universal…

Quantum Gases · Physics 2017-02-23 Michał Kulczykowski , Michał Matuszewski

We study the thermodynamic condensation of microcavity polaritons using a realistic model of disorder in semiconductor quantum wells. This approach correctly describes the polariton inhomogeneous broadening in the low density limit, and…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 F. M. Marchetti , J. Keeling , M. H. Szymanska , P. B. Littlewood
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