Quantum entanglement in condensed matter systems

N Laflorencie - Physics Reports, 2016 - Elsevier
This review focuses on the field of quantum entanglement applied to condensed matter
physics systems with strong correlations, a domain which has rapidly grown over the last …

Coherent and dissipative dynamics at quantum phase transitions

D Rossini, E Vicari - Physics Reports, 2021 - Elsevier
The many-body physics at quantum phase transitions shows a subtle interplay between
quantum and thermal fluctuations, emerging in the low-temperature limit. In this review, we …

Deconfined quantum criticality lost

M Song, J Zhao, M Cheng, C Xu, MM Scherer… - arXiv preprint arXiv …, 2023 - arxiv.org
Over the past two decades, the enigma of the deconfined quantum critical point (DQCP) has
attracted broad attention across the condensed matter, quantum field theory, and high …

Extracting subleading corrections in entanglement entropy at quantum phase transitions

M Song, J Zhao, ZY Meng, C Xu, M Cheng - SciPost Physics, 2024 - scipost.org
We systematically investigate the finite size scaling behavior of the Rényi entanglement
entropy (EE) of several representative 2d quantum many-body systems between a …

Investigating topological order using recurrent neural networks

M Hibat-Allah, RG Melko, J Carrasquilla - Physical Review B, 2023 - APS
Recurrent neural networks (RNNs), originally developed for natural language processing,
hold great promise for accurately describing strongly correlated quantum many-body …

Stable computation of entanglement entropy for two-dimensional interacting fermion systems

G Pan, Y Da Liao, W Jiang, J D'Emidio, Y Qi, ZY Meng - Physical Review B, 2023 - APS
There is no doubt that the information hidden in entanglement entropy (EE), for example, the
n th order Rényi EE, ie, S n A= 1 1− n ln Tr (ρ A n), where ρ A= Tr A¯ ρ is the reduced density …

Incremental SWAP operator for entanglement entropy: Application for exponential observables in quantum Monte Carlo simulation

X Zhou, ZY Meng, Y Qi, Y Da Liao - Physical Review B, 2024 - APS
We propose a method to efficiently compute the entanglement entropy (EE) of quantum
many-body systems. Our approach, called the incremental SWAP operator method …

Exponential thermal tensor network approach for quantum lattice models

BB Chen, L Chen, Z Chen, W Li, A Weichselbaum - Physical Review X, 2018 - APS
We speed up thermal simulations of quantum many-body systems in both one-(1D) and two-
dimensional (2D) models in an exponential way by iteratively projecting the thermal density …

Holographic entanglement density for spontaneous symmetry breaking

HS Jeong, KY Kim, YW Sun - Journal of High Energy Physics, 2022 - Springer
A bstract We investigate the properties of the holographic entanglement entropy of the
systems in which the U (1) or the translational symmetry is broken spontaneously. For this …

Improved scaling of the entanglement entropy of quantum antiferromagnetic Heisenberg systems

Z Deng, L Liu, W Guo, HQ Lin - Physical Review B, 2023 - APS
In this paper, we derive corrections to the subleading logarithmic term of the entanglement
entropy in systems with spontaneous broken continuous symmetry. Using quantum Monte …