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相关论文: Spin multistability in dissipative polariton chann…

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We derive an expression for the local transverse polarization of a boost-invariant expanding system of massive particles, which involves a set of dynamical spin moments. Starting from spin kinetic theory, we obtain a closed set of equations…

高能物理 - 唯象学 · 物理学 2023-12-12 Nora Weickgenannt , Jean-Paul Blaizot

We investigate thermalization dynamics of a driven dipolar many-body quantum system through the stability of discrete time crystalline order. Using periodic driving of electronic spin impurities in diamond, we realize different types of…

In this work, we develop an optomechanical formalism for macroscopic quantum states in exciton-polariton systems with strong exciton-phonon interactions. We show that polariton optomechanical interactions induce dynamical backaction,…

量子气体 · 物理学 2024-10-31 Vladislav Yu. Shishkov , Evgeny S. Andrianov , Anton V. Zasedatelev

We study theoretically layered spin systems where long-range dipolar interactions play a relevant role. By choosing a specific sample shape, we are able to reduce the complex Hamiltonian of the system to that of a much simpler coupled…

统计力学 · 物理学 2009-11-11 Alessandro Campa , Ramaz Khomeriki , David Mukamel , Stefano Ruffo

We perform 3D micromagnetic simulations of current-driven magnetization dynamics in nanoscale exchange biased spin-valves that take account of (i) back action of spin-transfer torque on the pinned layer, (ii) non-linear damping and (iii)…

介观与纳米尺度物理 · 物理学 2009-11-13 G. Siracusano , G. Finocchio , I. N. Krivorotov , L. Torres , G. Consolo , B. Azzerboni

Electrodynamics of single-layer graphene is studied in the scaling regime. At any finite temperature, there is a weakly damped collective thermo-plasma polariton mode whose dispersion and wavelength dependent damping is determined…

介观与纳米尺度物理 · 物理学 2007-05-23 Oskar Vafek

Superposition states of circular currents of exciton-polaritons mimic the superconducting flux qubits. The phase of a polariton fluid must change by an integer number of $2\pi$, when going around the ring. If one introduces a ${\pi}$-phase…

介观与纳米尺度物理 · 物理学 2021-02-03 Yan Xue , Igor Chestnov , Evgeny Sedov , Evgeny Kiktenko , Aleksey Fedorov , Stefan Schumacher , Xuekai Ma , Alexey Kavokin

We investigate the cross-interactions in a two-component polariton quantum fluid coherently driven by two independent pumping lasers tuned at different energies and momenta. We show that both the hysteresis cycles and the ON/OFF threshold…

We report multistate optical switching among high-order bouncing-ball modes ("ripples") and whispering-gallerying modes ("petals") of exciton-polariton condensates in a laser-generated annular trap. By tailoring the diameter and power of…

介观与纳米尺度物理 · 物理学 2018-01-31 Yongbao Sun , Yoseob Yoon , Saeed Khan , Li Ge , Loren N. Pfeiffer , Ken West , Hakan E. Tureci , David W. Snoke , Keith A. Nelson

We study the elastic response of a stationarily driven system of a cavity field strongly coupled with molecular excitons, taking into account the main dissipation channels due to the finite cavity linewidth and molecular vibrations. We show…

量子物理 · 物理学 2021-02-24 Kalle S. U. Kansanen , J. Jussi Toppari , Tero T. Heikkilä

A newly-developed normal mode model of laser dynamics in a generalised array of waveguides is applied to extend the spin-flip model (SFM) to pairs of evanescently-coupled spin-VCSELS. The effect of high birefringence is explored, revealing…

光学 · 物理学 2020-04-29 Martin P Vaughan , Hadi Susanto , Ian D Henning , Mike J Adams

We give a theoretical perspective on the vorticity and spin polarization in heavy-ion collisions. We discuss the recent progress in spin hydrodynamics and spin kinetic theory. We also discuss other effects caused by vorticity including the…

核理论 · 物理学 2021-02-03 Xu-Guang Huang

We use a one-dimensional polariton fluid in a semiconductor microcavity to explore the rich nonlinear dynamics of counter-propagating interacting Bose fluids. The intrinsically driven-dissipative nature of the polariton fluid allows to use…

We first predict the splitting of a spin degenerate impurity level when this impurity is irradiated by a circularly polarized laser beam tuned in the transparency region of a semiconductor. This splitting, which comes from different…

介观与纳米尺度物理 · 物理学 2009-11-10 M. Combescot , O. Betbeder-Matibet

The linear equations for transverse spin dynamics in weakly polarised degenerate Fermi liquid with arbitrary relationship between temperature and polarization are derived from Landau-Silin phenomenological kinetic equation with general form…

统计力学 · 物理学 2009-11-10 V. P. Mineev

The interplay of dynamics and transport leads to intriguing spatiotemporal behaviors of nonequilibrium macroscopic quantum systems. By means of time-resolved spectroscopy, we here provide microscopic insights into the interplay of ballistic…

光学 · 物理学 2026-03-09 Fangxin Zhang , Changchang Huang , Yichun Pan , Guangran Yang , Wei Xie , Weihang Zhou

Unexpectedly large and puzzling spin alignment, and thus tensor polarization, of vector mesons has been observed in heavy-ion collisions. Given that tensor polarization represents a fluctuation of spin, we derive, for the first time, a…

核理论 · 物理学 2025-11-18 Feng Li , Shuai Y. F. Liu

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

The transport property of a lateral two-dimensional diluted magnetic semiconductor electron gas under a spatially periodic magnetic field is investigated theoretically. We find that the electron Fermi velocity along the modulation direction…

介观与纳米尺度物理 · 物理学 2007-05-23 W. Yang , Kai Chang , X. G. Wu , H. Z. Zheng

We study the stability of a multicomponent exciton-polariton fluid under resonant excitation within the linear response approximation of a generalized Gross-Pitaevskii equation. We show that, two spatially homogeneous and independently…

介观与纳米尺度物理 · 物理学 2015-03-17 E. Cancellieri , F. M. Marchetti , M. H. Szymanska , C. Tejedor