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Related papers: Multi-stability and condensation of exciton-polari…

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Equilibrium Bose-Einstein condensation of exciton-polaritons, demonstrated with a long-lifetime microcavity [Phys. Rev. Lett. 118, 016602 (2017)], has proven that driven-dissipative systems can undergo thermodynamic phase transitions in the…

We study nonlinear dynamics of exciton-polaritons in an incoherently pumped semiconductor microcavity with embedded weak-contrast lattice and coupled to an exciton reservoir. We elucidate fundamental features of non-equilibrium…

Mesoscale and Nanoscale Physics · Physics 2015-03-26 X. Ma , I. Yu. Chestnov , M. V. Charukhchyan , A. P. Alodjants , O. A. Egorov

We develop a theory for the dynamics of the density matrix describing a multimode polariton condensate. In such a condensate several single-particle orbitals become highly occupied, due to stimulated scattering from reservoirs of…

Mesoscale and Nanoscale Physics · Physics 2014-09-12 David Racine , P. R. Eastham

We present a theoretical model that allows us to describe the polariton dynamics in a semiconductor microcavity at large densities, for the case of non-resonant excitation. Exciton-polariton scattering from a thermalized exciton reservoir…

Condensed Matter · Physics 2009-11-07 D. Porras , C. Ciuti , J. J. Baumberg , C. Tejedor

We demonstrate the possibility to build stable Josephson $\pi$-junction stripes with exciton-polariton condensates. The stability of the $\pi$-junction between arbitrary long polariton stripes is achieved at low pumping by balancing the…

Quantum Gases · Physics 2020-05-20 A. Muñoz Mateo , Y. G. Rubo , L. A. Toikka

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

The quantum theory of polariton condensation in a trapped state reveals a second-order phase transition evidenced by spontaneous polarization parity breaking in sub-spaces of fixed polariton occupation numbers. The emission spectra of a…

Mesoscale and Nanoscale Physics · Physics 2024-08-14 Huawen Xu , Timothy C. H. Liew , Yuri G. Rubo

We investigate the stability and coherence properties of one-dimensional exciton-polariton condensates under nonresonant pumping. We model the condensate dynamics using the open-dissipative Gross-Pitaevskii equation. In the case of…

Quantum Gases · Physics 2017-02-27 Nataliya Bobrovska , Elena A. Ostrovskaya , Michal Matuszewski

Condensation of exciton-polaritons has been recently observed in one-dimensional photonic crystal waveguides, exploiting the interplay of long-lived gap confined eigenmodes and negative mass polariton branches. Here we focus on the…

We perform Young's double-slit experiment to study the spatial coherence properties of a two-dimensional dynamic condensate of semiconductor microcavity polaritons. The coherence length of the system is measured as a function of the pump…

Mesoscale and Nanoscale Physics · Physics 2007-09-18 Hui Deng , Glenn S. Solomon , Rudolf Hey , Klaus H. Ploog , Yoshihisa Yamamoto

Exciton-polaritons are bosonic-like elementary excitations in semiconductors, which have been recently shown to display large occupancy of topologically protected polariton bound states in the continuum in suitably engineered photonic…

Other Condensed Matter · Physics 2023-12-13 Davide Nigro , Dario Gerace

We consider a new approach to the problem of Bose-Einstein condensation (BEC) of polaritons for atom-field interaction under the strong coupling regime in the cavity. We investigate the dynamics of two macroscopically populated polariton…

Quantum Physics · Physics 2007-09-20 A. P. Alodjants , S. M. Arakelian , S. N. Bagayev , V. S. Egorov , A. Yu. Leksin

When single-particle dynamics are suppressed in certain strongly correlated systems, dipoles arise as elementary carriers of quantum kinetics. These dipoles can further condense, providing physicists with a rich realm to study fracton…

Quantum Gases · Physics 2023-10-05 Wenhui Xu , Chenwei Lv , Qi Zhou

Bosonic condensation of microcavity polaritons is accompanied by their relaxation from the ensemble of excited states into a single quantum state. The excess of energy is transferred to the crystal lattice that eventually involves heating…

Mesoscale and Nanoscale Physics · Physics 2018-09-19 I. Yu. Chestnov , T. A. Khudaiberganov , A. P. Alodjants , A. V. Kavokin

We demonstrate experimentally the condensation of exciton-polaritons through optical trapping. The non-resonant pump profile is shaped into a ring and projected to a high quality factor microcavity where it forms a 2D repulsive optical…

Other Condensed Matter · Physics 2015-06-12 A. Askitopoulos , H. Ohadi , Z. Hatzopoulos , P. G. Savvidis , A. V. Kavokin , P. G. Lagoudakis

In spite of having finite life-time exciton-polaritons in microcavities are known to condense at strong enough pumping of the reservoir. We present an analytical theory of such Bose-condensates on a set of localized one-particle states:…

Mesoscale and Nanoscale Physics · Physics 2012-03-09 I. L. Aleiner , B. L. Altshuler , Y. G. Rubo

Strongly correlated polaritons are necessary for entering the quantum photonic regime with many applications. We simulate exciton-polariton condensation using the finite-difference and 4th order Runge-Kutta methods with the strongly…

Quantum Physics · Physics 2025-01-07 Varad R. Pande

We examine spatial localisation and dynamical stability of Bose-Einstein condensates of exciton-polaritons in microcavities under the condition of off-resonant spatially inhomogeneous optical pumping both with and without a harmonic…

Other Condensed Matter · Physics 2015-06-05 Elena A. Ostrovskaya , Jasur Abdullaev , Anton S. Desyatnikov , Michael D. Fraser , Yuri S. Kivshar

We consider the existence, stability and dynamics of the ground state and nonlinear excitations, in the form of dark solitons, for a quasi-one-dimensional polariton condensate in the presence of pumping and nonlinear damping. We find a…

Exciton-polaritons generated by light-induced potentials can spontaneously condense into macroscopic quantum states that display nontrivial spatial and temporal density modulation. While these patterns and their dynamics can be reproduced…

Mesoscale and Nanoscale Physics · Physics 2013-11-20 Li Ge , Ani Nersisyan , Baris Oztop , Hakan E. Tureci