Recent developments in quantum Monte Carlo simulations with applications for cold gases

L Pollet - Reports on progress in physics, 2012 - iopscience.iop.org
This is a review of recent developments in Monte Carlo methods in the field of ultracold
gases. For bosonic atoms in an optical lattice we discuss path-integral Monte Carlo …

Physics of our days: Cooling and thermometry of atomic Fermi gases

R Onofrio - Physics-Uspekhi, 2016 - iopscience.iop.org
We review the status of cooling techniques aimed at achieving the deepest quantum
degeneracy for atomic Fermi gases. We first discuss some physics motivations, providing a …

Measurement of -wave scattering lengths in a two-component Bose-Einstein condensate

M Egorov, B Opanchuk, P Drummond, BV Hall… - Physical Review A …, 2013 - APS
We use collective oscillations of a two-component Bose-Einstein condensate (2CBEC) of 87
Rb atoms prepared in the internal states| 1〉≡| F= 1, m F=− 1〉 and| 2〉≡| F= 2, m F= 1〉 for …

Spin gradient demagnetization cooling of ultracold atoms

P Medley, DM Weld, H Miyake, DE Pritchard… - Physical review …, 2011 - APS
We demonstrate a new cooling method in which a time-varying magnetic field gradient is
applied to an ultracold spin mixture. This enables preparation of isolated spin distributions at …

New trends in quantum integrability: recent experiments with ultracold atoms

XW Guan, P He - Reports on Progress in Physics, 2022 - iopscience.iop.org
Over the past two decades quantum engineering has made significant advances in our
ability to create genuine quantum many-body systems using ultracold atoms. In particular …

Lower and upper bounds of quantum battery power in multiple central spin systems

L Peng, WB He, S Chesi, HQ Lin, XW Guan - Physical Review A, 2021 - APS
We study the energy-transfer process in quantum battery systems consisting of multiple
central spins and bath spins. Here with “quantum battery” we refer to the central spins …

Spin-dipole oscillation and polarizability of a binary Bose-Einstein condensate near the miscible-immiscible phase transition

T Bienaimé, E Fava, G Colzi, C Mordini, S Serafini… - Physical Review A, 2016 - APS
We report on the measurement of the spin-dipole (SD) polarizability and of the frequency of
the SD oscillation of a two-component Bose-Einstein condensate of sodium atoms …

Nonlocal order parameter of pair superfluids

N Cuzzuol, L Barbiero, A Montorsi - arXiv preprint arXiv:2404.15972, 2024 - arxiv.org
Order parameters represent a fundamental resource to characterize quantum matter. We
show that pair superfluids can be rigorously defined in terms of a nonlocal order parameter …

Cooling through quantum criticality and many-body effects in condensed matter and cold gases

B Wolf, A Honecker, W Hofstetter, U Tutsch… - International Journal of …, 2014 - World Scientific
This article reviews some recent developments for new cooling technologies in the fields of
condensed matter physics and cold gases, both from an experimental and theoretical point …

Pomeranchuk effect and spin-gradient cooling of Bose-Bose mixtures in an optical lattice

Y Li, MR Bakhtiari, L He, W Hofstetter - Physical Review A—Atomic, Molecular …, 2012 - APS
We theoretically investigate finite-temperature thermodynamics and demagnetization
cooling of two-component Bose-Bose mixtures in a cubic optical lattice, by using bosonic …