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We study, theoretically and numerically, the onset and development of modulational instability in an incoherently pumped spatially homogeneous polariton condensate. Within the framework of mean-field theory, we identify regimes of…

介观与纳米尺度物理 · 物理学 2015-04-09 T. C. H. Liew , O. A. Egorov , M. Matuszewski , O. Kyriienko , X. Ma , E. A. Ostrovskaya

We report an extended family of spin textures in coexisting modes of zero-dimensional polariton condensates spatially confined in tunable open microcavity structures. The coupling between photon spin and angular momentum, which is enhanced…

We report on the observation of spin whirls in a radially expanding polariton condensate formed under non-resonant optical excitation. Real space imaging of polarization- and time-resolved photoluminescence reveal a spiralling polarization…

We study the dynamics of formation and decay of a condensate of microcavity polaritons. We investigate the relationship between the number of particles, the emission's linewidth and its degree of linear polarization which serves as the…

介观与纳米尺度物理 · 物理学 2009-09-09 E. del Valle , D. Sanvitto , A. Amo , F. P. Laussy , A. Andre , C. Tejedor , L. Vina

We study theoretically the transport of linearly polarized exciton-polaritons in a quasi one-dimensional microcavity channel separating two polariton condensates generated by optical pumping. The direction and value of mass and spin…

介观与纳米尺度物理 · 物理学 2013-07-25 M. Yu. Petrov , A. V. Kavokin

An exciton-polariton microcavity that incorporates magnetic ions can exhibit a spontaneous self-trapping phenomenon which is an analog of the classical polaron effect. We investigate in detail the full model of a polariton condensate that…

量子气体 · 物理学 2018-11-14 Paweł Miętki , Michał Matuszewski

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…

量子气体 · 物理学 2015-08-26 G. Li , T. C. H. Liew , O. A. Egorov , E. A. Ostrovskaya

We study the polarization dynamics of a spatially expanding polariton condensate under nonresonant linearly polarized optical excitation. The spatially and temporally resolved polariton emission reveals the formation of non-trivial spin…

We show how the transition between synchronized and desynchronized states of a spinor polariton condensate can be used to drive a transition between stationary vortex lattices and half-vortex lattices. This provides a way to control…

量子气体 · 物理学 2011-06-21 Jonathan Keeling , Natalia G. Berloff

We predict spontaneous generation of superfluid polariton currents in planar microcavities with lateral periodic modulation of both potential and decay rate. A spontaneous breaking of spatial inversion symmetry of a polariton condensate…

介观与纳米尺度物理 · 物理学 2017-08-15 A. V. Nalitov , T. C. H. Liew , A. V. Kavokin , B. L. Altshuler , Y. G. Rubo

We propose a grated microcavity setup to form trapped polariton condensates with parity-time ($\mathcal{PT}$) symmetry and study their polarization dynamics. The pseudo-conservative dynamics of the Stokes vector in proposed configuration is…

介观与纳米尺度物理 · 物理学 2024-03-04 I. Jesán Velázquez-Reséndiz , Yuri G. Rubo

We develop a theory of spin fluctuations of exciton-polaritons in a semiconductor microcavity under the non-resonant unpolarized pumping. It is shown that the corresponding spin noise is sensitive to the scattering rates in the system,…

介观与纳米尺度物理 · 物理学 2015-06-15 M. M. Glazov , M. A. Semina , E. Ya. Sherman , A. V. Kavokin

We study formation of superfluid currents of exciton polaritons in annular polariton condensates in a cylindrical micropillar cavity under the spatially localised nonresonant optical pumping. Since polariton condensates are strongly…

介观与纳米尺度物理 · 物理学 2024-03-07 Evgeny Sedov , Vladimir Lukoshkin , Vladimir Kalevich , Igor Chestnov , Z. Hatzopoulos , P. G. Savvidis , Alexey Kavokin

We investigate theoretically the creation, persistence and detection of quantized vortices in nonequilibrium polariton condensates within a stochastic classical field model. The life time of the quantized vortices is shown to increase with…

量子气体 · 物理学 2009-04-21 Michiel Wouters , Vincenzo Savona

We study the hydrodynamics of a nonresonantly-pumped polariton condensate in a quasi-one-dimensional quantum wire taking into account the spin degree of freedom. We clarify the relevance of the Landau criterion for superfluidity in this…

介观与纳米尺度物理 · 物理学 2014-09-26 P. -É Larré , N. Pavloff , A. M. Kamchatnov

Owing to their integer spin, exciton-polaritons in microcavities can be used for observation of non-equilibrium Bose-Einstein condensation in solid state. However, spin-related phenomena of such condensates are difficult to explore due to…

We address evolution of a spinor polariton condensate in radially periodic potentials. Such potentials allow for the observation of novel nonlinear excitations and support a variety of dynamically stable soliton states never demonstrated…

介观与纳米尺度物理 · 物理学 2019-03-13 Dmitry A. Zezyulin , Yaroslav V. Kartashov , Dmitry V. Skryabin , Ivan A. Shelykh

We investigate the optical orientation, polarization pinning, and depolarization of optically confined semiconductor exciton-polariton condensates. We perform a complete mapping of the condensate polarization as a function of incident…

介观与纳米尺度物理 · 物理学 2020-09-23 Ivan Gnusov , Helgi Sigurdsson , Stepan Baryshev , Timur Ermatov , Alexis Askitopoulos , Pavlos G. Lagoudakis

A major challenge in polariton fluids is achieving deterministic control over the spin texture of the macroscopic condensate wavefunction, which dictates the nucleation and dynamics of topological excitations, such as vortices, solitons,…

应用物理 · 物理学 2026-04-23 Andrea Zacheo , Marco Marangi , Nilo Mata-Cervera , Yijie Shen , Giorgio Adamo , Cesare Soci

Theoretical study is performed of a single-mode polariton system with linear coupling of spin components. When combined with an ordinary two-particle interaction, the spin coupling involves a spontaneous symmetry breaking accompanied by a…

介观与纳米尺度物理 · 物理学 2022-08-31 S. S. Gavrilov
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