[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 …

Open quantum systems with local and collective incoherent processes: Efficient numerical simulations using permutational invariance

N Shammah, S Ahmed, N Lambert, S De Liberato… - Physical Review A, 2018 - APS
The permutational invariance of identical two-level systems allows for an exponential
reduction in the computational resources required to study the Lindblad dynamics of …

Scrambling in random unitary circuits: Exact results

B Bertini, L Piroli - Physical Review B, 2020 - APS
We study the scrambling of quantum information in local random unitary circuits by focusing
on the tripartite information proposed by Hosur et al. We provide exact results for the …

Entangled multiplets and spreading of quantum correlations in a continuously monitored tight-binding chain

F Carollo, V Alba - Physical Review B, 2022 - APS
We analyze the dynamics of entanglement in a paradigmatic noninteracting system subject
to continuous monitoring of the local excitation densities. Recently, it was conjectured that …

Quantum chaos in the Brownian SYK model with large finite N: OTOCs and tripartite information

C Sünderhauf, L Piroli, XL Qi, N Schuch… - Journal of High Energy …, 2019 - Springer
A bstract We consider the Brownian SYK model of N interacting Majorana fermions, with
random couplings that are taken to vary independently at each time. We study the out-of …

Information scrambling versus decoherence—two competing sinks for entropy

A Touil, S Deffner - PRX Quantum, 2021 - APS
A possible solution of the information paradox can be sought in quantum information
scrambling. In this paradigm, it is postulated that all information entering a black hole is …

Digital quantum simulation, trotter errors, and quantum chaos of the kicked top

LM Sieberer, T Olsacher, A Elben, M Heyl… - npj Quantum …, 2019 - nature.com
This work aims at giving Trotter errors in digital quantum simulation (DQS) of collective spin
systems an interpretation in terms of quantum chaos of the kicked top. In particular, for DQS …

Engineering impurity Bell states through coupling with a quantum bath

TD Anh-Tai, T Fogarty, S de María-García, T Busch… - Physical Review …, 2024 - APS
We theoretically demonstrate the feasibility of creating Bell states in multicomponent
ultracold atomic gases by solely using the ability to control the interparticle interactions via …

Witnessing quantum chaos using observational entropy

S Pg, R Modak, S Aravinda - Physical Review E, 2023 - APS
We study observation entropy (OE) for the quantum kicked top model, whose classical
counterpart possesses different phases: regular, mixed, or chaotic, depending on the …

Scrambling in strongly chaotic weakly coupled bipartite systems: Universality beyond the Ehrenfest timescale

R Prakash, A Lakshminarayan - Physical Review B, 2020 - APS
Out-of-time-order correlators (OTOCs), vigorously being explored as a measure of quantum
chaos and information scrambling, is studied here in the natural and simplest multiparticle …