Engineering Dynamical Phase Diagrams with Driven Lattices in Spinor Gases
Abstract
We experimentally demonstrate that well-designed driven lattices are versatile tools to simultaneously tune multiple key parameters (namely spin-dependent interactions, spinor phase, and Zeeman energy) for manipulating phase diagrams of spinor gases with negligible heating and atom losses. This opens a new avenue for studying dynamical phase transitions in engineered Hamiltonians. The driven lattice creates additional separatrices in phase space at driving-frequency-determined locations, with progressively narrower separatrices at higher Zeeman energies due to modulation-induced higher harmonics. The vastly expanded range of magnetic fields at which significant spin dynamics occur and improved sensitivities at higher harmonics represent a step towards quantum sensing with ultracold gases.
Cite
@article{arxiv.2309.00592,
title = {Engineering Dynamical Phase Diagrams with Driven Lattices in Spinor Gases},
author = {Jared O. Austin-Harris and Zachary N. Hardesty-Shaw and Qingze Guan and Cosmo Binegar and Doerte Blume and Robert J. Lewis-Swan and Yingmei Liu},
journal= {arXiv preprint arXiv:2309.00592},
year = {2025}
}