Kinetics of information scrambling in correlated metals: Disorder-driven transition from shock wave to Fisher or Kolmogorov-Petrovsky-Piskunov dynamics

Kinetics of information scrambling in correlated metals: Disorder-driven transition from shock wave to Fisher or Kolmogorov-Petrovsky-Piskunov dynamics
复制标题

相关金属中信息扰乱的动力学:从冲击波到费舍尔或柯尔莫哥洛夫-彼得洛夫斯基-皮斯库诺夫动力学的无序驱动转变

DOI:
10.1103/physrevb.108.l241106
复制
发表时间:
2023
期刊:
影响因子:
3.7
通讯作者:
A. Mitra
A. Mitra
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
C. Aron;'Eric Brunet;A. Mitra

文献摘要

参考文献

被引文献

相似文献

猝灭无序减慢了量子信息的混乱。使用自下而上的方法,我们制定了一个动力学理论的相关金属附近的超导过渡的混乱,混乱的动力学杂质散射率的增加。在这个框架内,我们严格地表明,蝴蝶的速度$v$的限制由光锥速度$v_{\rmlc}$设置的费米速度。我们分析确定一个无序驱动的动态过渡发生在小,但有限的无序强度之间的传播的信息,其特征在于在晚些时候由一个不连续的冲击波传播的最大速度$v_{\rm lc}$,和一个光滑的行波属于Fisher或Kolmogorov-Petrovsky-Piskunov(FKPP)类和传播速度较慢,如果不是相当慢,速度$v$。在扩散区域,我们建立了关系$v^2/\lambda_{\rm FKPP} \sim D_{\rm el}$其中$\lambda_{\rm FKPP}$是由非弹性散射率设置的李雅普诺夫指数,$D_{\rm el}$是弹性扩散常数。
Quenched disorder slows down the scrambling of quantum information. Using a bottom-up approach, we formulate a kinetic theory of scrambling in a correlated metal near a superconducting transition, following the scrambling dynamics as the impurity scattering rate is increased. Within this framework, we rigorously show that the butterfly velocity $v$ is bounded by the light cone velocity $v_{\rm lc }$ set by the Fermi velocity. We analytically identify a disorder-driven dynamical transition occurring at small but finite disorder strength between a spreading of information characterized at late times by a discontinuous shock wave propagating at the maximum velocity $v_{\rm lc}$, and a smooth traveling wave belonging to the Fisher or Kolmogorov-Petrovsky-Piskunov (FKPP) class and propagating at a slower, if not considerably slower, velocity $v$. In the diffusive regime, we establish the relation $v^2/\lambda_{\rm FKPP} \sim D_{\rm el}$ where $\lambda_{\rm FKPP}$ is the Lyapunov exponent set by the inelastic scattering rate and $D_{\rm el}$ is the elastic diffusion constant.
量子蝴蝶前沿的行进不连续性
DOI: 10.21468/scipostphys.15.2.042
发表时间: 2023
期刊: SciPost Physics
影响因子: 5.5
作者:
Aron, Camille;Brunet, Éric;Mitra, Aditi
通讯作者: Mitra, Aditi
多体量子、半经典和经典混沌中速度相关的李雅普诺夫指数
DOI: 10.1103/physrevb.98.144304
发表时间: 2018
期刊: Physical Review B
影响因子: 3.7
作者:
Khemani V
通讯作者: Khemani V
DOI: 10.1103/physrevx.8.021014
发表时间: 2018-04-11
期刊: PHYSICAL REVIEW X
影响因子: 12.5
作者:
Nahum, Adam;Vijay, Sagar;Haah, Jeongwan
通讯作者: Haah, Jeongwan
DOI: 10.1007/s00220-016-2790-9
发表时间: 2016
影响因子: 2.4
作者:
Berestycki J
通讯作者: Berestycki J