Quasistatic transfer protocols for atomtronic superfluid circuits
Statistical Mechanics
2021-02-08 v2 Quantum Gases
Abstract
Quasi-static protocols for systems that feature a mixed phase-space with both chaos and quasi-regular regions are beyond the standard paradigm of adiabatic processes. We focus on a many-body system of atoms that are described by the Bose-Hubbard Hamiltonian, specifically a circuit that consists of bosonic sites. We consider a sweep process: slow variation of the rotation frequency of the device (time dependent Sagnac phase). The parametric variation of phase-space topology implies that the quasi-static limit is irreversible. Detailed analysis is essential in order to determine the outcome of such transfer protocol, and its efficiency.
Cite
@article{arxiv.2003.03984,
title = {Quasistatic transfer protocols for atomtronic superfluid circuits},
author = {Yehoshua Winsten and Doron Cohen},
journal= {arXiv preprint arXiv:2003.03984},
year = {2021}
}
Comments
15 pages, 10 figures