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
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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
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发表时间:
2023
影响因子:
3.7
通讯作者:
A. Mitra
中科院分区:
文献类型:
--
作者:
C. Aron;'Eric Brunet;A. Mitra
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.
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影响因子:
5.5
作者:
Aron, Camille;Brunet, Éric;Mitra, Aditi
通讯作者:
Mitra, Aditi
影响因子:
3.7
作者:
Khemani V
通讯作者:
Khemani V
影响因子:
12.5
作者:
Nahum, Adam;Vijay, Sagar;Haah, Jeongwan
通讯作者:
Haah, Jeongwan
影响因子:
2.4
作者:
Berestycki J
通讯作者:
Berestycki J