[HTML][HTML] Out-of-equilibrium dynamics of quantum many-body systems with long-range interactions

N Defenu, A Lerose, S Pappalardi - Physics Reports, 2024 - Elsevier
Experimental progress in atomic, molecular, and optical platforms in the last decade has
stimulated strong and broad interest in the quantum coherent dynamics of many long-range …

Quenches near Ising quantum criticality as a challenge for artificial neural networks

S Czischek, M Gärttner, T Gasenzer - Physical Review B, 2018 - APS
The near-critical unitary dynamics of quantum Ising spin chains in transversal and
longitudinal magnetic fields is studied using an artificial neural network representation of the …

A generalized phase space approach for solving quantum spin dynamics

B Zhu, AM Rey, J Schachenmayer - New Journal of Physics, 2019 - iopscience.iop.org
Numerical techniques to efficiently model out-of-equilibrium dynamics in interacting
quantum many-body systems are key for advancing our capability to harness and …

Nonlocal emergent hydrodynamics in a long-range quantum spin system

A Schuckert, I Lovas, M Knap - Physical Review B, 2020 - APS
Generic short-range interacting quantum systems with a conserved quantity exhibit universal
diffusive transport at late times. We employ nonequilibrium quantum field theory and …

Hybrid discrete-continuous truncated Wigner approximation for driven, dissipative spin systems

CD Mink, D Petrosyan, M Fleischhauer - Physical Review Research, 2022 - APS
We present a systematic approach for the semiclassical treatment of many-body dynamics of
interacting, open spin systems. Our approach overcomes some of the shortcomings of the …

Validating phase-space methods with tensor networks in two-dimensional spin models with power-law interactions

SR Muleady, M Yang, SR White, AM Rey - Physical Review Letters, 2023 - APS
Using a recently developed extension of the time-dependent variational principle for matrix
product states, we evaluate the dynamics of 2D power-law interacting XXZ models …

Nonequilibrium dynamics of spin-boson models from phase-space methods

A Piñeiro Orioli, A Safavi-Naini, ML Wall, AM Rey - Physical Review A, 2017 - APS
An accurate description of the nonequilibrium dynamics of systems with coupled spin and
bosonic degrees of freedom remains theoretically challenging, especially for large system …

Picosecond-scale ultrafast many-body dynamics in an ultracold Rydberg-excited atomic Mott insulator

V Bharti, S Sugawa, M Mizoguchi, M Kunimi, Y Zhang… - Physical review …, 2023 - APS
We report the observation and control of ultrafast many-body dynamics of electrons in
ultracold Rydberg-excited atoms, spatially ordered in a three-dimensional Mott insulator (MI) …

Cluster truncated Wigner approximation for bond-disordered Heisenberg spin models

A Braemer, J Vahedi, M Gärttner - Physical Review B, 2024 - APS
We present a comprehensive numerical investigation of the cluster truncated Wigner
approximation (cTWA) applied to quench dynamics in bond-disordered Heisenberg spin …

Quantum fluctuations approach to the nonequilibrium approximation

E Schroedter, JP Joost, M Bonitz - arXiv preprint arXiv:2204.08250, 2022 - arxiv.org
The quantum dynamics of fermionic or bosonic many-body systems following external
excitation can be successfully studied using two-time nonequilibrium Green's functions …