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 …

Theory of trotter error with commutator scaling

AM Childs, Y Su, MC Tran, N Wiebe, S Zhu - Physical Review X, 2021‏ - APS
The Lie-Trotter formula, together with its higher-order generalizations, provides a direct
approach to decomposing the exponential of a sum of operators. Despite significant effort …

Programmable quantum simulations of spin systems with trapped ions

C Monroe, WC Campbell, LM Duan, ZX Gong… - Reviews of Modern …, 2021‏ - APS
Laser-cooled and trapped atomic ions form an ideal standard for the simulation of interacting
quantum spin models. Effective spins are represented by appropriate internal energy levels …

Lieb-Robinson light cone for power-law interactions

MC Tran, AY Guo, CL Baldwin, A Ehrenberg… - Physical review …, 2021‏ - APS
The Lieb-Robinson theorem states that information propagates with a finite velocity in
quantum systems on a lattice with nearest-neighbor interactions. What are the speed limits …

Entanglement growth and correlation spreading with variable-range interactions in spin and fermionic tunneling models

AS Buyskikh, M Fagotti, J Schachenmayer, F Essler… - Physical Review A, 2016‏ - APS
We investigate the dynamics following a global parameter quench for two one-dimensional
models with variable-range power-law interactions: a long-range transverse Ising model …

Locality and digital quantum simulation of power-law interactions

MC Tran, AY Guo, Y Su, JR Garrison, Z Eldredge… - Physical Review X, 2019‏ - APS
The propagation of information in nonrelativistic quantum systems obeys a speed limit
known as a Lieb-Robinson bound. We derive a new Lieb-Robinson bound for systems with …

Disorder-enhanced and disorder-independent transport with long-range hop**: Application to molecular chains in optical cavities

NC Chávez, F Mattiotti, JA Méndez-Bermúdez… - Physical Review Letters, 2021‏ - APS
Overcoming the detrimental effect of disorder at the nanoscale is very hard since disorder
induces localization and an exponential suppression of transport efficiency. Here we unveil …

Topological properties of a dense atomic lattice gas

RJ Bettles, J Minář, CS Adams, I Lesanovsky, B Olmos - Physical Review A, 2017‏ - APS
We investigate the existence of topological phases in a dense two-dimensional atomic
lattice gas. The coupling of the atoms to the radiation field gives rise to dissipation and a …

Improved Lieb-Robinson bound for many-body Hamiltonians with power-law interactions

DV Else, F Machado, C Nayak, NY Yao - Physical Review A, 2020‏ - APS
In this paper, we prove a family of Lieb-Robinson bounds for discrete spin systems with long-
range interactions. Our results apply for arbitrary k-body interactions, so long as they decay …