...
首页> 外文期刊>Physical review >Quantum chaos of unitary Fermi gases in the strong pairing fluctuation region
【24h】

Quantum chaos of unitary Fermi gases in the strong pairing fluctuation region

机译:Quantum Chaos of Unitary Fermi气体在强配对波动区域

获取原文
获取原文并翻译 | 示例
           

摘要

The growth rate of the out-of-time-ordered correlator in a N-flavor Fermi gas is investigated and the Lyapunov exponent λ_L is calculated to the order of 1/N. We find that the Lyapunov exponent monotonically increases as the interaction strength increases from the BCS limit to the unitary region. At the unitarity. the Lyapunov exponent increases while the temperature drops and it can reach to the order of λ_L ~ T around the critical temperature for the N = 1 case. For N →∞ , the Lyapunov exponent reaches its maximum λ_L ≈ 4.357/N at the critical temperature. The system scrambles faster for stronger pairing fluctuations. At the BCS limit, the Lyapunov exponent behaviors as λ_L ∝ e~(μ/T) a_s~2T~2/N.
机译:研究了N-Flover Fermi气体中的逐时排序相关器的生长速率,并且Lyapunov指数λ_L计算为1 / n的顺序。当相互作用强度从BCS限制增加到整体区域时,我们发现Lyapunov指数单调增加。在统一性。 Lyapunov指数在温度下降时增加,并且它可以达到λ_L〜t的顺序,围绕n = 1个案例的临界温度。对于n→∞,Lyapunov指数在临界温度下达到其最大λ_L≈4.357/ n。系统加快更快的配对波动。在BCS限制,Lyapunov指数行为为λ_Lαe〜(μ/ t)a_s〜2t〜2 / n。

著录项

  • 来源
    《Physical review》 |2020年第4期|045123.1-045123.8|共8页
  • 作者

    Xinloong Han; Boyang Liu;

  • 作者单位

    Department of Physics and Center of Theoretical and Computational Physics The University of Hong Kong Hong Kong China;

    Institute of Theoretical Physics Beijing University of Technology Beijing 100124 China;

  • 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