Superdiffusive energy transport in kinetically constrained models

M Ljubotina, JY Desaules, M Serbyn, Z Papić - Physical Review X, 2023 - APS
Universal nonequilibrium properties of isolated quantum systems are typically probed by
studying transport of conserved quantities, such as charge or spin, while transport of energy …

Weak integrability breaking perturbations of integrable models

FM Surace, O Motrunich - Physical Review Research, 2023 - APS
A quantum integrable system slightly perturbed away from integrability is typically expected
to thermalize on timescales of order τ∼ λ− 2, where λ is the perturbation strength. We here …

Exact description of quantum stochastic models as quantum resistors

T Jin, JS Ferreira, M Filippone, T Giamarchi - Physical Review Research, 2022 - APS
We study the transport properties of generic out-of-equilibrium quantum systems connected
to fermionic reservoirs. We develop a perturbation scheme in the inverse system size …

Weak integrability breaking: Chaos with integrability signature in coherent diffusion

M Žnidarič - Physical Review Letters, 2020 - APS
We study how perturbations affect dynamics of integrable many-body quantum systems,
causing transition from integrability to chaos. Looking at spin transport in the Heisenberg …

Generic transport formula for a system driven by Markovian reservoirs

T Jin, M Filippone, T Giamarchi - Physical Review B, 2020 - APS
We present a generic, compact formula for the current flowing in interacting and
noninteracting systems which are driven out of equilibrium by biased reservoirs described …

Integrability breaking in the Rule 54 cellular automaton

J Lopez-Piqueres, S Gopalakrishnan… - Journal of Physics A …, 2022 - iopscience.iop.org
Cellular automata have recently attracted a lot of attention as testbeds to explore the
emergence of many-body quantum chaos and hydrodynamics. We consider the Rule 54 …

Semiclassical theory of quantum stochastic resistors

T Jin, J Ferreira, M Bauer, M Filippone… - Physical Review …, 2023 - APS
We devise a semiclassical model to describe the transport properties of low-dimensional
fermionic lattices under the influence of external quantum stochastic noise. These systems …

Modified Matthiessen's rule: More scattering leads to less resistance

M Žnidarič - Physical Review B, 2022 - APS
We study the breaking of integrability by a finite density of dilute impurities, specifically the
emerging diffusive transport. Provided the distance between impurities (localized …

Comment on “Nonequilibrium steady state phases of the interacting Aubry-André-Harper model”

M Žnidarič - Physical Review B, 2021 - APS
There has been interest in the spin transport properties of the Aubry-André-Harper model at
high temperatures under weak integrability breaking, in particular for small interactions or …

Thermal Drude weight in an integrable chiral clock model

S Manna, GJ Sreejith - Physical Review B, 2023 - APS
We calculate the finite temperature thermal conductivity of a time-reversal invariant chiral Z 3
clock model along an integrable line in the parameter space using the time-dependent …