Ultracold bosons with cavity-mediated long-range interactions: A local mean-field analysis of the phase diagram

AE Niederle, G Morigi, H Rieger - Physical Review A, 2016 - APS
Ultracold bosonic atoms in optical lattices self-organize into a variety of structural and
quantum phases when placed into a single-mode cavity and pumped by a laser. Cavity …

Superfluid density and quasi-long-range order in the one-dimensional disordered Bose–Hubbard model

M Gerster, M Rizzi, F Tschirsich, P Silvi… - New Journal of …, 2016 - iopscience.iop.org
We study the equilibrium properties of the one-dimensional disordered Bose–Hubbard
model by means of a gauge-adaptive tree tensor network variational method suitable for …

Weak-versus strong-disorder superfluid—Bose glass transition in one dimension

EVH Doggen, G Lemarié, S Capponi, N Laflorencie - Physical Review B, 2017 - APS
Using large-scale simulations based on matrix product state and quantum Monte Carlo
techniques, we study the superfluid to Bose glass transition for one-dimensional attractive …

From eigenstate to Hamiltonian: Prospects for ergodicity and localization

M Dupont, N Macé, N Laflorencie - Physical Review B, 2019 - APS
This paper addresses the so-called inverse problem which consists in searching for
(possibly multiple) parent target Hamiltonian (s), given a single quantum state as input …

Many-body localization as a large family of localized ground states

M Dupont, N Laflorencie - Physical Review B, 2019 - APS
Many-body localization (MBL) addresses the absence of thermalization in interacting
quantum systems, with nonergodic high-energy eigenstates behaving as ground states, only …

Quantum critical behavior of the superfluid-Mott glass transition

T Vojta, J Crewse, M Puschmann, D Arovas, Y Kiselev - Physical Review B, 2016 - APS
We investigate the zero-temperature superfluid to insulator transitions in a diluted two-
dimensional quantum rotor model with particle-hole symmetry. We map the Hamiltonian …

Quantum critical scaling of dirty bosons in two dimensions

R Ng, ES Sørensen - Physical Review Letters, 2015 - APS
We determine the dynamical critical exponent z appearing at the Bose glass to superfluid
transition in two dimensions by performing large scale numerical studies of two …

Mobility edge of the two-dimensional Bose-Hubbard model

A Geißler, G Pupillo - Physical Review Research, 2020 - APS
We analyze the disorder-driven localization of the two-dimensional Bose-Hubbard model by
evaluating the full low-energy quasiparticle spectrum via a recently developed fluctuation …

Simulating dirty bosons on a quantum computer

LB Oftelie, R Van Beeumen, D Camps… - New Journal of …, 2024 - iopscience.iop.org
Quantum computers hold the potential to unlock new discoveries in complex quantum
systems by enabling the simulation of physical systems that have heretofore been …

Evidence of many-body localization in 2D from quantum Monte Carlo simulation

HK Tang, N Swain, DCW Foo, BJJ Khor… - arXiv preprint arXiv …, 2021 - arxiv.org
We use the stochastic series expansion quantum Monte Carlo method, together with the
eigenstate-to-Hamiltonian construction, to map the localized Bose glass ground state of the …