Work

Many-Body Dephasing by Hole Motion in a Spin-Orbit-Coupled Mott Insulator

Year: 2024

Type: preprint

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.

Source: HAL (Le Centre pour la Communication Scientifique Directe)

DOI: 10.48550/arxiv.2409.05828

Authors: Ghermaoui, A., Aguilera, M. Bosch, Bouganne, R., Vatré, R., Fritsche, I., Beugnon, J., Gerbier, F.

Institutions: Centre National de la Recherche Scientifique, Collège de France, Laboratoire Kastler Brossel, École Normale Supérieure - PSL, Austrian Academy of Sciences, Universität Innsbruck, Institute for Quantum Optics and Quantum Information Innsbruck, Sorbonne Université

Language: English

Topic: Cold Atom Physics and Bose-Einstein Condensates

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W4402857201

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