One- and two-axis squeezing via laser coupling in an atomic Fermi-Hubbard model
Quantum Gases
2022-09-07 v3 Mesoscale and Nanoscale Physics
Quantum Physics
Abstract
We study a production of spin-squeezed states with ultra-cold atomic fermions described by the Fermi-Hubbard model in the Mott insulating phase. We show activation of two twisting mechanisms by a position-dependent laser coupling between internal degrees of freedom of atoms. A single laser coupling simulates the one-axis twisting model with the orientation of the twisting axis determined by the coupling phase. Adding a second laser beam with a properly chosen phase paves the way to simulate the two-axis counter-twisting model, enabling to approach the Heisenberg-limited level of squeezing.
Cite
@article{arxiv.2204.06065,
title = {One- and two-axis squeezing via laser coupling in an atomic Fermi-Hubbard model},
author = {T. Hernández Yanes and M. Płodzień and M. Mackoit Sinkevičienė and G. Žlabys and G. Juzeliūnas and E. Witkowska},
journal= {arXiv preprint arXiv:2204.06065},
year = {2022}
}