[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 …

Complexity and entanglement for thermofield double states

S Chapman, J Eisert, L Hackl, MP Heller, R Jefferson… - SciPost physics, 2019 - scipost.org
Motivated by holographic complexity proposals as novel probes of black hole spacetimes,
we explore circuit complexity for thermofield double (TFD) states in free scalar quantum field …

Entanglement spreading in a minimal model of maximal many-body quantum chaos

B Bertini, P Kos, T Prosen - Physical Review X, 2019 - APS
The spreading of entanglement in out-of-equilibrium quantum systems is currently at the
center of intense interdisciplinary research efforts involving communities with interests …

Entanglement dynamics after quantum quenches in generic integrable systems

V Alba, P Calabrese - SciPost Physics, 2018 - scipost.org
The time evolution of the entanglement entropy in non-equilibrium quantum systems
provides crucial information about the structure of the time-dependent state. For quantum …

Bridging entanglement dynamics and chaos in semiclassical systems

A Lerose, S Pappalardi - Physical Review A, 2020 - APS
It is widely recognized that entanglement generation and dynamical chaos are intimately
related in semiclassical models via the process of decoherence. In this paper, we propose a …

Geometry of variational methods: dynamics of closed quantum systems

L Hackl, T Guaita, T Shi, J Haegeman, E Demler… - SciPost Physics, 2020 - scipost.org
We present a systematic geometric framework to study closed quantum systems based on
suitably chosen variational families. For the purpose of (A) real time evolution,(B) excitation …

Entanglement spreading in non-equilibrium integrable systems

P Calabrese - SciPost Physics Lecture Notes, 2020 - scipost.org
These are lecture notes for a short course given at the Les Houches Summer School
on``Integrability in Atomic and Condensed Matter Physics'', in summer 2018. Here, I …

Bosonic and fermionic Gaussian states from Kähler structures

L Hackl, E Bianchi - SciPost Physics Core, 2021 - scipost.org
We show that bosonic and fermionic Gaussian states (also known as" squeezed coherent
states") can be uniquely characterized by their linear complex structure $ J $ which is a …

Surprises in the deep Hilbert space of all-to-all systems: From superexponential scrambling to slow entanglement growth

Z Qi, T Scaffidi, X Cao - Physical Review B, 2023 - APS
The quantum dynamics of spin systems with uniform all-to-all interaction are often studied in
the totally symmetric space (TSS) of maximal total spin. However, the TSS states are atypical …

Origin of the slow growth of entanglement entropy in long-range interacting spin systems

A Lerose, S Pappalardi - Physical Review Research, 2020 - APS
Long-range interactions allow far-distance quantum correlations to build up very fast.
Nevertheless, numerical simulations demonstrated a dramatic slowdown of entanglement …