...
首页> 外文期刊>Physical review >Radical chiral Floquet phases in a periodically driven Kitaev model and beyond
【24h】

Radical chiral Floquet phases in a periodically driven Kitaev model and beyond

机译:周期性驱动的Kitaev模型及更高版本中的自由基手性Floquet相

获取原文
获取原文并翻译 | 示例
           

摘要

We theoretically discover a family of nonequilibrium fractional topological phases in which time-periodic driving of a 2D system produces excitations with fractional statistics, and produces chiral quantum channels that propagate a quantized fractional number of qubits along the sample edge during each driving period. These phases share some common features with fractional quantum Hall states, but are sharply distinct dynamical phenomena. Unlike the integer-valued invariant characterizing the equilibrium quantum Hall conductance, these . phases are characterized by a dynamical topological invariant that is a square root of a rational number, inspiring the label: radical chiral Floquet phases. We construct solvable models of driven and interacting spin systems with these properties, and identify an unusual bulk-boundary correspondence between the chiral edge dynamics and bulk "anyon time-crystal" order characterized by dynamical transmutation of electric-charge into magnetic-flux excitations in the bulk.
机译:从理论上讲,我们发现了一组非平衡分数阶拓扑相,其中二维系统的时间周期驱动产生具有分数统计量的激励,并产生了在每个驱动周期内沿样本边缘传播量化分数位数的量子比特的手性量子通道。这些相位与分数量子霍尔态具有一些共同的特征,但是却是截然不同的动力学现象。这些不同于表征平衡量子霍尔电导的整数不变式,这些。相的特征在于动态拓扑不变量,它是有理数的平方根,激发了标签:自由基手性Floquet相。我们构建具有这些性质的驱动和相互作用的自旋系统的可求解模型,并确定手性边缘动力学与以电荷动态转化为磁通量激发的特征为特征的“任意时间晶体”顺序之间不寻常的体-边界对应关系。大量。

著录项

  • 来源
    《Physical review》 |2017年第24期|245116.1-245116.10|共10页
  • 作者单位

    Department of Physics, University of California, Berkeley, California 94720, USA,Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA;

    Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794, USA,Kavli Institute for Theoretical Physics, University of California, Santa Barbara, California 93106, USA;

    Department of Physics, University of California, Berkeley, California 94720, USA,Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA;

    Department of Physics, University of Texas at Austin, Austin, Texas 78712, USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号