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首页> 外文期刊>Physical review >Merging of vortices and antivortices in polariton superfluids
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Merging of vortices and antivortices in polariton superfluids

机译：极化子超流体中涡旋和反涡旋的合并

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摘要

Quantized vortices are remarkable manifestations on a macroscopic scale of the coherent nature of quantum fluids, and the study of their properties is of fundamental importance for the understanding of this peculiar state of matter. Cavity polaritons, due to their double light-matter nature, offer a unique controllable environment to investigate these properties. In this paper we theoretically investigate the possibility to deterministically achieve the annihilation of a vortex with an antivortex through an increase of the polariton density in the region surrounding the vortices. Moreover, we demonstrate that by means of this mechanism an array of vortex-antivortex pairs can be completely washed out.
机译：量子涡旋是量子流体相干性质的宏观尺度上的显着表现，其性质的研究对于理解这种特殊的物质状态至关重要。腔极化子由于具有双重光的性质，因此提供了独特的可控环境来研究这些性质。在本文中，我们从理论上研究了通过增加涡旋周围区域的极化子密度来确定性地实现带反涡旋的the灭的可能性。此外，我们证明了通过这种机制，可以完全洗掉涡旋-反涡旋对阵列。

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  • 来源
    《Physical review》 |2014年第21期|214518.1-214518.5|共5页
  • 作者

    E. Cancellieri; T. Boulier; R. Hivet; D. Ballarini; D. Sanvitto; M. H. Szymanska; C. Ciuti; E. Giacobino; A. Bramati;

  • 作者单位

    Laboratoire Kastler Brossel, Universite Pierre et Marie Curie, Ecole Normale Superieure et CNRS, UPMC case 74, 4 place Jussieu, 75005 Paris, France,Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom;

    Laboratoire Kastler Brossel, Universite Pierre et Marie Curie, Ecole Normale Superieure et CNRS, UPMC case 74, 4 place Jussieu, 75005 Paris, France;

    Laboratoire Kastler Brossel, Universite Pierre et Marie Curie, Ecole Normale Superieure et CNRS, UPMC case 74, 4 place Jussieu, 75005 Paris, France;

    NNL, Istituto Nanoscienze-CNR, Via Arnesano, 73100 Lecce, Italy;

    NNL, Istituto Nanoscienze-CNR, Via Arnesano, 73100 Lecce, Italy;

    Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom;

    Laboratoire Materiaux et Phenomenes Quantiques, UMR 7162, Universite Paris Diderot-Paris 7 et CNRS, 75013 Paris, France;

    Laboratoire Kastler Brossel, Universite Pierre et Marie Curie, Ecole Normale Superieure et CNRS, UPMC case 74, 4 place Jussieu, 75005 Paris, France;

    Laboratoire Kastler Brossel, Universite Pierre et Marie Curie, Ecole Normale Superieure et CNRS, UPMC case 74, 4 place Jussieu, 75005 Paris, France;

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  • 正文语种 eng
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  • 关键词

    polaritons (including photon-phonon and photon-magnon interactions); tunneling, josephson effect, bose-einstein condensates in periodic potentials, solitons, vortices and topological excitations; phase conjugation; photorefractive and kerr effects;

    机译：极化子（包括光子-声子和光子-磁子相互作用）;隧道效应;约瑟夫森效应;周期性势;孤子;涡旋和拓扑激发中的玻色-爱因斯坦凝聚;相位共轭光折变和克尔效应;

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