Quantum field thermal machines

M Gluza, J Sabino, NHY Ng, G Vitagliano, M Pezzutto… - PRX Quantum, 2021 - APS
Recent years have enjoyed an overwhelming interest in quantum thermodynamics, a field of
research aimed at understanding thermodynamic tasks performed in the quantum regime …

Generic transport formula for a system driven by Markovian reservoirs

T **, M Filippone, T Giamarchi - Physical Review B, 2020 - APS
We present a generic, compact formula for the current flowing in interacting and
noninteracting systems which are driven out of equilibrium by biased reservoirs described …

Flat-band transport and Josephson effect through a finite-size sawtooth lattice

VAJ Pyykkönen, S Peotta, P Fabritius, J Mohan… - Physical Review B, 2021 - APS
We study theoretically the transport through a finite-size sawtooth lattice coupled to two
fermionic reservoirs kept in the superfluid state. We focus on the DC Josephson effect and …

Interaction-assisted reversal of thermopower with ultracold atoms

S Häusler, P Fabritius, J Mohan, M Lebrat, L Corman… - Physical Review X, 2021 - APS
We study thermoelectric currents of neutral, fermionic atoms flowing through a mesoscopic
channel connecting a hot and a cold reservoir across the superfluid transition. The …

Probing the BCS-BEC crossover with persistent currents

G Pecci, P Naldesi, L Amico, A Minguzzi - Physical Review Research, 2021 - APS
We study the persistent currents of an attractive Fermi gas confined in a tightly confining ring
trap and subjected to an artificial gauge field all through the BCS-BEC crossover. At weak …

Multiparticle tunneling transport at strongly correlated interfaces

H Tajima, D Oue, M Matsuo - Physical Review A, 2022 - APS
We elucidate the multiparticle transport of pair tunneling and spin tunneling in strongly
correlated interfaces. Not only usual single-particle tunneling but also interaction-induced …

Universal nomogram for the atomtronic quantum rotation sensor

E Arabahmadi, D Schumayer, DAW Hutchinson - Physical Review A, 2021 - APS
Bose-Einstein condensates in annular geometries have received significant attention due to
their potential use as interferometers for inertial sensing and other applications. We …

Spin drag and fast response in a quantum mixture of atomic gases

F Carlini, S Stringari - Physical Review A, 2021 - APS
By applying a sudden perturbation to one of the components of a mixture of two quantum
fluids, we explore the effect on the motion of the second component on a short timescale. By …

Classical and Quantum Gases on a Semiregular Mesh

D De Gregorio, S Prestipino - Applied Sciences, 2021 - mdpi.com
The main objective of a statistical mechanical calculation is drawing the phase diagram of a
many-body system. In this respect, discrete systems offer the clear advantage over …

Static properties of two linearly coupled discrete circuits

A Escrivà, A Richaud, B Juliá-Díaz… - Journal of Physics B …, 2021 - iopscience.iop.org
Bosonic two-ring ladders constitute an important class of atomtronic circuits, where coherent
current flows not only can offer a new insight into many-body physics, but also can play the …