[HTML][HTML] Dirty-boson physics with magnetic insulators
A Zheludev, T Roscilde - Comptes Rendus Physique, 2013 - Elsevier
We review recent theoretical and experimental efforts aimed at the investigation of the
physics of interacting disordered bosons (so-called dirty bosons) in the context of quantum …
physics of interacting disordered bosons (so-called dirty bosons) in the context of quantum …
Critical properties of the superfluid—bose-glass transition in two dimensions
We investigate the superfluid (SF) to Bose-glass (BG) quantum phase transition using
extensive quantum Monte Carlo simulations of two-dimensional hard-core bosons in a …
extensive quantum Monte Carlo simulations of two-dimensional hard-core bosons in a …
Quantum discord length is enhanced while entanglement length is not by introducing disorder in a spin chain
Classical correlation functions of ground states typically decay exponentially and
polynomially, respectively, for gapped and gapless short-range quantum spin systems. In …
polynomially, respectively, for gapped and gapless short-range quantum spin systems. In …
Pressure-induced quantum critical and multicritical points in a frustrated spin liquid
The quantum spin-liquid compound (C 4 H 12 N 2) Cu 2 Cl 6 is studied by muon spin
relaxation under hydrostatic pressures up to 23.6 kbar. At low temperatures, pressure …
relaxation under hydrostatic pressures up to 23.6 kbar. At low temperatures, pressure …
Dynamics of a bond-disordered quantum magnet near criticality
KY Povarov, E Wulf, D Hüvonen, J Ollivier… - Physical Review B, 2015 - APS
Neutron scattering is used to study NiCl 2− 2 x Br 2 x· 4 SC (NH 2) 2, x= 0.06, a bond-
disordered modification of the well-known gapped S= 1 antiferromagnetic quantum spin …
disordered modification of the well-known gapped S= 1 antiferromagnetic quantum spin …
Excitation spectra of disordered dimer magnets near quantum criticality
M Vojta - Physical Review Letters, 2013 - APS
For coupled-dimer magnets with quenched disorder, we introduce a generalization of the
bond-operator method, appropriate to describe both singlet and magnetically ordered …
bond-operator method, appropriate to describe both singlet and magnetically ordered …
Quantum critical scaling at a Bose-glass/superfluid transition: Theory and experiment for a model quantum magnet
R Yu, CF Miclea, F Weickert, R Movshovich… - Physical Review B …, 2012 - APS
In this paper we investigate the quantum phase transition from magnetic Bose Glass to
magnetic Bose-Einstein condensation induced by a magnetic field in NiCl 2· 4SC (NH 2) 2 …
magnetic Bose-Einstein condensation induced by a magnetic field in NiCl 2· 4SC (NH 2) 2 …
Scale-invariant freezing of entanglement
We show that bipartite entanglement in an one-dimensional quantum spin model
undergoing time evolution due to local Markovian environments can be frozen over time. We …
undergoing time evolution due to local Markovian environments can be frozen over time. We …
Inhomogeneous mean-field approach to collective excitations near the superfluid–Mott glass transition
We develop an inhomogeneous quantum mean-field approach to the behavior of collective
excitations across the superfluid–Mott glass quantum phase transition in two dimensions …
excitations across the superfluid–Mott glass quantum phase transition in two dimensions …
Noncollinear antiferromagnetism in the Zintl semiconductor
Eu 5 In 2 Sb 6 is an orthorhombic nonsymmorphic small band gap semiconductor with three
distinct Eu 2+ sites and two low-temperature magnetic phase transitions. The material …
distinct Eu 2+ sites and two low-temperature magnetic phase transitions. The material …