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Emergence of fluctuating hydrodynamics in chaotic quantum systems
Julian F. Wienand, Simon Karch, Alexander Impertro +6
A fundamental principle of chaotic quantum dynamics is that local subsystems eventually approach a thermal equilibrium state. Large subsystems thermalize slower: their approach to…
Non-linear fluctuating hydrodynamics for KPZ scaling in isotropic spin chains
Jacopo De Nardis, Sarang Gopalakrishnan, Romain Vasseur
Finite temperature spin transport in integrable isotropic spin chains is known to be superdiffusive, with dynamical spin correlations that are conjectured to fall into the Kardar-P…
Hydrodynamic relaxation of spin helices
Guillaume Cecile, Sarang Gopalakrishnan, Romain Vasseur +1
Motivated by recent cold atom experiments, we study the relaxation of spin helices in quantum XXZ spin chains. The experimentally observed relaxation of spin helices follows scalin…
Quantum Brownian motion in a quasiperiodic potential
Aaron J Friedman, Romain Vasseur, Austen Lamacraft +1
We consider a quantum particle subject to Ohmic dissipation, moving in a bichromatic quasiperiodic potential. In a periodic potential the particle undergoes a zero-temperature loca…