Optically Driven Rotation of Exciton-Polariton Condensates.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.3c01021
Abstract: The rotational response of quantum condensed fluids is strikingly distinct from rotating classical fluids, especially notable for the excitation and ordering of quantized vortex ensembles. Although widely studied in conservative systems, the dynamics of rotating… read more here.
Keywords: polariton; optically driven; rotation; polariton condensates ... See more keywords
Directional Goldstone waves in polariton condensates close to equilibrium
Sign Up to like & getrecommendations! Published in 2020 at "Nature Communications"
DOI: 10.1038/s41467-019-13733-x
Abstract: Quantum fluids of light are realized in semiconductor microcavities using exciton-polaritons, solid-state quasi-particles with a light mass and sizeable interactions. Here, we use the microscopic analogue of oceanographic techniques to measure the excitation spectrum of… read more here.
Keywords: goldstone; waves polariton; polariton condensates; goldstone waves ... See more keywords
Optically trapped polariton condensates as semiclassical time crystals
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.99.033830
Abstract: We analyze nonequilibrium phase transitions in microcavity polariton condensates trapped in optically induced annular potentials. We develop an analytic model for annular optical traps, which gives an intuitive interpretation for recent experimental observations on the… read more here.
Keywords: polariton; trapped polariton; time; polariton condensates ... See more keywords
Autonomous chaos of exciton-polariton condensates
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.155305
Abstract: We study the formation of chaos and strange attractors in the order parameter space of a system of two coupled, nonresonantly driven exciton-polariton condensates. The typical scenario of bifurcations experienced by the system with increasing… read more here.
Keywords: polariton; order parameter; chaotic dynamics; polariton condensates ... See more keywords
Matter wave coupling of spatially separated and unequally pumped polariton condensates
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.97.094512
Abstract: Spatial quantum coherence between two separated driven-dissipative polariton condensates created nonresonantly and with a different occupation is studied. We identify the regions where the condensates remain coherent with the phase difference continuously changing with the… read more here.
Keywords: matter wave; polariton condensates; polariton; spatially separated ... See more keywords
Optical Bistability under Nonresonant Excitation in Spinor Polariton Condensates.
Sign Up to like & getrecommendations! Published in 2018 at "Physical review letters"
DOI: 10.1103/physrevlett.120.225301
Abstract: We realize bistability in the spinor of polariton condensates under nonresonant optical excitation and in the absence of biasing external fields. Numerical modeling of the system using the Ginzburg-Landau equation with an internal Josephson coupling… read more here.
Keywords: spinor polariton; polariton; polariton condensates; excitation ... See more keywords
Tracking Quantum Coherence in Polariton Condensates with Time-Resolved Tomography.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.130.113601
Abstract: Long-term quantum coherence constitutes one of the main challenges when engineering quantum devices. However, easily accessible means to quantify complex decoherence mechanisms are not readily available, nor are sufficiently stable systems. We harness novel phase-space… read more here.
Keywords: time; coherence; polariton condensates; quantum coherence ... See more keywords
Dynamic compression of exciton-polariton condensates in semiconductor microcavities
Sign Up to like & getrecommendations! Published in 2017 at "JETP Letters"
DOI: 10.1134/s0021364017220118
Abstract: The possibility of the dynamic compression of a polariton system in a planar microcavity after the end of a resonant pump pulse with the formation of the ground state of a condensate on the bottom… read more here.
Keywords: dynamic compression; polariton; polariton condensates; compression exciton ... See more keywords
Unidirectional vortex waveguides and multistable vortex pairs in polariton condensates.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.457724
Abstract: Vortices carrying quantized topological charges have potential applications in information processing. In this work, we investigate vortex carriers and waveguides in microcavity polariton condensates, nonresonantly excited by a homogeneous pump with intensity grooves. An intensity… read more here.
Keywords: unidirectional vortex; vortex waveguides; polariton condensates; dark ring ... See more keywords