Numerical studies of quantum turbulence

M Tsubota, K Fujimoto, S Yui - Journal of Low Temperature Physics, 2017 - Springer
We review numerical studies of quantum turbulence. Quantum turbulence is currently one of
the most important problems in low temperature physics and is actively studied for superfluid …

Mott transition for a Lieb-Liniger gas in a shallow quasiperiodic potential: Delocalization induced by disorder

H Yao, L Tanzi, L Sanchez-Palencia, T Giamarchi… - Physical Review Letters, 2024 - APS
Disorder or quasidisorder is known to favor localization in many-body Bose systems. Here,
in contrast, we demonstrate an anomalous delocalization effect induced by …

Connecting dissipation and phase slips in a Josephson junction between fermionic superfluids

A Burchianti, F Scazza, A Amico, G Valtolina… - Physical review …, 2018 - APS
We study the emergence of dissipation in an atomic Josephson junction between weakly
coupled superfluid Fermi gases. We find that vortex-induced phase slippage is the dominant …

Oscillations and decay of superfluid currents in a one-dimensional Bose gas on a ring

J Polo, R Dubessy, P Pedri, H Perrin, A Minguzzi - Physical Review Letters, 2019 - APS
We study the time evolution of a supercurrent imprinted on a one-dimensional ring of
interacting bosons in the presence of a defect created by a localized barrier. Depending on …

Quantum many-body scars in the Bose-Hubbard model with a three-body constraint

R Kaneko, M Kunimi, I Danshita - Physical Review A, 2024 - APS
We uncover the exact athermal eigenstates in the Bose-Hubbard (BH) model with a three-
body constraint, motivated by the exact construction of quantum many-body scar (QMBS) …

Josephson vortices induced by phase twisting a polariton superfluid

D Caputo, N Bobrovska, D Ballarini, M Matuszewski… - Nature …, 2019 - nature.com
Quantum fluids of light are an emerging platform for energy-efficient signal processing,
ultrasensitive interferometry and quantum simulators at elevated temperatures. Here we …

Topological defects in open superconducting nanotubes after gradual and abrupt switching of the transport current and magnetic field

I Bogush, VM Fomin - Physical Review B, 2022 - APS
We analyze dynamics of the order parameter in superconductor open nanotubes under a
strong transport current in an external homogeneous magnetic field using the time …

Quantum phase slips: from condensed matter to ultracold quantum gases

C D'Errico, SS Abbate… - … Transactions of the …, 2017 - royalsocietypublishing.org
Quantum phase slips (QPS) are the primary excitations in one-dimensional superfluids and
superconductors at low temperatures. They have been well characterized in most …

Matrix product state approach for a quantum system at finite temperatures using random phases and Trotter gates

S Goto, R Kaneko, I Danshita - Physical Review B, 2021 - APS
We develop a numerical method based on matrix product states for simulating quantum
many-body systems at finite temperatures without importance sampling and evaluate its …

Relaxation electrodynamics of superinsulators

A Mironov, MC Diamantini, CA Trugenberger… - Scientific Reports, 2022 - nature.com
Superinsulators offer a unique laboratory realizing strong interaction phenomena like
confinement and asymptotic freedom in quantum materials. Recent experiments evidenced …