Many-Body Dephasing by Hole Motion in a Spin-Orbit-Coupled Mott Insulator
Quantum Gases
2024-09-10 v1
Abstract
We use Ramsey interferometry to study spin dynamics in the strongly interacting regime of spin-orbit-coupled quantum gases in one-dimensional optical lattices. We observe an intrinsic many-body dephasing mechanism immune to spin-echo in two-component Mott insulators. We ascribe the dephasing to the motion of hole-like defects in an otherwise inert Mott insulator, the spinless nature of the holes explaining the ineffectiveness of spin echo to restore it. We show that a model of spin-orbit-coupled hardcore bosons can explain quantitatively our experimental observations.
Keywords
Cite
@article{arxiv.2409.05828,
title = {Many-Body Dephasing by Hole Motion in a Spin-Orbit-Coupled Mott Insulator},
author = {A. Ghermaoui and M. Bosch Aguilera and R. Bouganne and R. Vatré and I. Fritsche and J. Beugnon and F. Gerbier},
journal= {arXiv preprint arXiv:2409.05828},
year = {2024}
}
Comments
Supplementary Material available as ancillary file