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Chiral Dynamics of Ultracold Atoms under a Tunable SU(2) Synthetic Gauge Field

Physics

Chiral Dynamics of Ultracold Atoms under a Tunable SU(2) Synthetic Gauge Field

Q. Liang, Z. Dong, et al.

This groundbreaking research by Qian Liang and colleagues explores the fascinating world of chiral dynamics in a synthetic SU(2) gauge field, uncovering spin-dependent currents and the non-Abelian Aharonov-Bohm effect. Dive into the interplay of dynamics and gauge fields, revealing new insights in quantum simulation!

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Playback language: English
Abstract
Surface currents emerge in superconductors exposed to magnetic fields, and are a key signature of the Meissner effect. Analogously, chiral dynamics were observed in quantum simulators under synthetic Abelian gauge fields. This work implements a synthetic SU(2) gauge field in a spinful 1D ladder and studies the chiral dynamics. The non-Abelian nature is confirmed by observing the non-Abelian Aharonov-Bohm effect. The chiral current is spin-dependent and tunable, and different dynamic regimes are mapped out, revealing the competition between overlaying flux ladders with distinct spin compositions. The experiment demonstrates the impact of non-Abelian gauge fields on system dynamics.
Publisher
Published On
Jan 09, 2024
Authors
Qian Liang, Zhaoli Dong, Hongru Wang, Hang Li, Zhaoju Yang, Jian-Song Pan, Wei Yi, Bo Yan
Tags
chiral dynamics
non-Abelian gauge fields
Aharonov-Bohm effect
spin-dependent currents
synthetic SU(2) gauge field
quantum simulation

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