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 …

Computational studies of quantum spin systems

AW Sandvik - AIP Conference Proceedings, 2010 - pubs.aip.org
These lecture notes introduce quantum spin systems and several computational methods for
studying their ground‐state and finite‐temperature properties. Symmetry‐breaking and …

Evidence for Deconfined Quantum Criticality in a Two-Dimensional Heisenberg Model<? format?> with Four-Spin Interactions

AW Sandvik - Physical review letters, 2007 - APS
Using ground-state projector quantum Monte Carlo simulations in the valence-bond basis, it
is demonstrated that nonfrustrating four-spin interactions can destroy the Néel order of the …

Quantum critical transport, duality, and M theory

CP Herzog, P Kovtun, S Sachdev, DT Son - Physical Review D—Particles …, 2007 - APS
We consider charge transport properties of 2+ 1 dimensional conformal field theories at
nonzero temperature. For theories with only Abelian U (1) charges, we describe the action of …

Continuous Quantum Phase Transition between an Antiferromagnet and a Valence-Bond Solid<? format?> in Two Dimensions: Evidence for Logarithmic Corrections …

AW Sandvik - Physical review letters, 2010 - APS
The antiferromagnetic to valence-bond-solid phase transition in the two-dimensional JQ
model (an S= 1/2 Heisenberg model with four-spin interactions) is studied using large-scale …

Scaling of the disorder operator at deconfined quantum criticality

YC Wang, N Ma, M Cheng, ZY Meng - SciPost Physics, 2022 - scipost.org
We study scaling behavior of the disorder parameter, defined as the expectation value of a
symmetry transformation applied to a finite region, at the deconfined quantum critical point in …

Simple fermionic model of deconfined phases and phase transitions

FF Assaad, T Grover - Physical Review X, 2016 - APS
Using quantum Monte Carlo simulations, we study a series of models of fermions coupled to
quantum Ising spins on a square lattice with N flavors of fermions per site for N= 1, 2, and 3 …

Curie temperature of emerging two-dimensional magnetic structures

X Lu, R Fei, L Yang - Physical Review B, 2019 - APS
Recent realizations of intrinsic, long-range magnetic orders in two-dimensional (2D) van der
Waals materials have ignited tremendous research interest. In this work, we employ the XXZ …

Loop updates for variational and projector quantum Monte Carlo simulations in the valence-bond basis

AW Sandvik, HG Evertz - Physical Review B—Condensed Matter and …, 2010 - APS
We show how efficient loop updates, originally developed for Monte Carlo simulations of
quantum spin systems at finite temperature, can be combined with a ground-state projector …