Zobrazeno 1 - 10
of 794
pro vyhledávání: '"Szymańska M"'
Coherence of a non-equilibrium polariton condensate across the interaction-mediated phase transition
Autor:
Comaron, P., Estrecho, E., Wurdack, M., Pieczarka, M., Steger, M., Snoke, D. W., West, K., Pfeiffer, L. N., Truscott, A. G., Matuszewski, M., Szymanska, M., Ostrovskaya, E. A.
The emergence of spatial coherence in a confined two-dimensional Bose gas of exciton-polaritons with tuneable interactions offers a unique opportunity to explore the role of interactions in a phase transition in a driven-dissipative quantum system, w
Externí odkaz:
http://arxiv.org/abs/2407.10506
We investigate the properties of a two-dimensional \emph{spinor} microcavity polariton system driven by a linearly polarised continuous pump. In particular, we establish the role of the elementary excitations, namely the so-called half-vortices and f
Externí odkaz:
http://arxiv.org/abs/2312.03400
Autor:
Yao, Q., Comaron, P., Alnatah, H. A., Beaumariage, J., Mukherjee, S., West, K., Pfeiffer, L., Baldwin, K., Szymańska, M., Snoke, D. W.
Persistent circulation is a canonical effect of superfluidity. In previous experiments, quantized circulation has been observed in polariton condensates, usually far from equilibrium, but persistent current in the absence of any stirring has not been
Externí odkaz:
http://arxiv.org/abs/2302.07803
Publikováno v:
Phys. Rev. Lett. 130, 136001 (2023)
We study a four-component polariton system in the optical parametric oscillator regime consisting of exciton/photon and signal/idler modes across the Berezinskii-Kosterlitz-Thouless (BKT) transition. We show that all four components share the same BK
Externí odkaz:
http://arxiv.org/abs/2208.04167
Using Keldysh field theory, we find conditions for non-equilibrium condensation in the open Tavis-Cummings model under a direct finite-bandwidth incoherent cavity drive. Experimentally, we expect the condensation transition to be easily accessible to
Externí odkaz:
http://arxiv.org/abs/2201.00873
Publikováno v:
EPL 133 (2021) 17002
We study the 2d phase transition of a driven-dissipative system of exciton-polaritons under non-resonant pumping. Stochastic calculations are used to investigate the Berezinskii-Kosterlitz-Thouless-like phase diagram for experimentally realistic para
Externí odkaz:
http://arxiv.org/abs/2011.06365
Publikováno v:
Phys. Rev. B 105, 205301 (2022)
Recent approximate analytical work has suggested that, at certain values of the external pump, the optical parametric oscillator (OPO) regime of microcavity polaritons may provide a long sought realisation of Kardar-Parisi-Zhang (KPZ) physics in 2D.
Externí odkaz:
http://arxiv.org/abs/2009.05177
Publikováno v:
Phys. Rev. Lett. 125, 095301 (2020)
The Kibble-Zurek mechanism constitutes one of the most fascinating and universal phenomena in the physics of critical systems. It describes the formation of domains and the spontaneous nucleation of topological defects when a system is driven across
Externí odkaz:
http://arxiv.org/abs/2004.00918
Publikováno v:
Phys. Rev. Lett. 125, 265701 (2020)
We study the dynamics of vortices in a two-dimensional, non-equilibrium system, described by the compact Kardar-Parisi-Zhang equation, after a sudden quench across the critical region. Our exact numerical solution of the phase-ordering kinetics shows
Externí odkaz:
http://arxiv.org/abs/2003.01743
Autor:
Brookes, P., Tancredi, G., Patterson, A. D., Rahamim, J., Esposito, M., Leek, P. J., Ginossar, E., Szymanska, M. H.
Publikováno v:
Sci. Adv.7,eabe9492 (2021)
We investigate the dynamics of the bistable regime of the generalized Jaynes-Cummings Hamiltonian (GJC), realised by a circuit quantum electrodynamics (cQED) system consisting of a transmon qubit coupled to a microwave cavity. In this regime we obser
Externí odkaz:
http://arxiv.org/abs/1907.13592