Long-range interacting quantum systems

N Defenu, T Donner, T Macrì, G Pagano, S Ruffo… - Reviews of Modern …, 2023 - APS
In this review recent investigations are summarized of many-body quantum systems with
long-range interactions, which are currently realized in Rydberg atom arrays, dipolar …

[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 …

Dynamical and excited-state quantum phase transitions in collective systems

ÁL Corps, A Relaño - Physical Review B, 2022 - APS
We study dynamical phase transitions (DPTs) in quantum many-body systems with infinite-
range interaction, and present a theory connecting the two kinds of known DPTs (sometimes …

Impact of nonequilibrium fluctuations on prethermal dynamical phase transitions in long-range interacting spin chains

A Lerose, B Žunkovič, J Marino, A Gambassi, A Silva - Physical Review B, 2019 - APS
We study the nonequilibrium phase diagram and the dynamical phase transitions occurring
during the prethermalization of nonintegrable quantum spin chains, subject to either …

Quench dynamics and zero-energy modes: The case of the Creutz model

R Jafari, H Johannesson, A Langari… - Physical Review B, 2019 - APS
In most lattice models, the closing of a band gap typically occurs at high-symmetry points in
the Brillouin zone. Differently, in the Creutz model—describing a system of spinless fermions …

Symmetries and conserved quantities of boundary time crystals in generalized spin models

G Piccitto, M Wauters, F Nori, N Shammah - Physical Review B, 2021 - APS
We investigate how symmetries and conserved quantities relate to the occurrence of the
boundary time crystal (BTC) phase in a generalized spin model with Lindblad dissipation …

Dynamical quantum phase transitions in a spinor Bose-Einstein condensate and criticality enhanced quantum sensing

L Zhou, J Kong, Z Lan, W Zhang - Physical Review Research, 2023 - APS
Quantum phase transitions universally exist in the ground and excited states of quantum
many-body systems, and they have a close relationship with the nonequilibrium dynamical …

Theory of dynamical phase transitions in quantum systems with symmetry-breaking eigenstates

ÁL Corps, A Relaño - Physical review letters, 2023 - APS
We present a theory for the two kinds of dynamical quantum phase transitions, termed DPT-I
and DPT-II, based on a minimal set of symmetry assumptions. In the special case of …

Topological invariants for quantum quench dynamics from unitary evolution

H Hu, E Zhao - Physical Review Letters, 2020 - APS
Recent experiments began to explore the topological properties of quench dynamics, ie, the
time evolution following a sudden change in the Hamiltonian, via tomography of quantum …

Out-of-equilibrium phase diagram of long-range superconductors

P Uhrich, N Defenu, R Jafari, JC Halimeh - Physical Review B, 2020 - APS
Within the ultimate goal of classifying universality in quantum many-body dynamics,
understanding the relation between out-of-equilibrium and equilibrium criticality is a crucial …