...
首页> 外文期刊>Physical review >Quantum spinon oscillations in a finite one-dimensional transverse Ising model
【24h】

Quantum spinon oscillations in a finite one-dimensional transverse Ising model

机译:有限一维横向伊辛模型中的量子自旋振荡

获取原文
获取原文并翻译 | 示例
           

摘要

The full quantum dynamics of a spinon under external magnetic fields is investigated by using the time-evolving block decimation (TEBD) method within the microcanonical picture of transport. We show that the center of the spinon oscillates back and forth in the absence of dissipation. The quantum many-body behavior can be understood in a single-particle picture of transport and Bloch oscillations (BOs), where quantum fluctuations induce finite lifetimes. Transport, oscillations, and lifetimes can be tuned to some degree separately by external fields. Other nontrivial dynamics, such as resonance and chaos, are also discussed.
机译:通过在运输的微规范图中使用时间演化块抽取(TEBD)方法研究了外磁场下的自旋子的完整量子动力学。我们表明,在没有耗散的情况下,旋子的中心来回振荡。量子多体行为可以从传输和布洛赫振荡(BOs)的单粒子图像中理解,其中量子涨落引起有限的寿命。传输,振荡和寿命可以通过外部场在某种程度上进行调整。还讨论了其他非平凡的动力学,例如共振和混沌。

著录项

  • 来源
    《Physical review》 |2011年第15期|p.155119.1-155119.5|共5页
  • 作者单位

    Department of Physics, University of California, San Diego, California 92093, USA;

    Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences,Beijing 100080, People's Republic of China;

    Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences,Beijing 100080, People's Republic of China International Center for Quantum Materials, Peking University, Beijing 100871, People's Republic of China Department of Physics, Oklahoma State University, Still-water, Oklahoma 74078, USA;

    Fakultaet fuer Physik, Ludwig-Maximilians-Universitaet Muenchen, D-80798 Miinchen, Germany;

    Physics Department, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, People's Republic of China;

    Department of Physics, University of California, San Diego, California 92093, USA;

    Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences,Beijing 100080, People's Republic of China;

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

    spin chain models; nonequilibrium and irreversible thermodynamics; quantized spin models;

    机译:自旋链模型;非平衡和不可逆热力学;量化自旋模型;

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