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Harmonic trap resonance enhanced synthetic atomic spin-orbit coupling.

ABSTRACT: Spin-orbit coupling (SOC) plays an essential role in many exotic and interesting phenomena in condensed matter physics. In neutral-atom-based quantum simulations, synthetic SOC constitutes a key enabling element. The strength of SOC realized so far is limited by various reasons or constraints. This work reports tunable SOC synthesized with a gradient magnetic field (GMF) for atoms in a harmonic trap. Nearly ten-fold enhancement is observed when the GMF is modulated near the harmonic-trap resonance in comparison with the free-space situation. A theory is developed that well explains the experimental results. Our work offers a clear physical insight into and analytical understanding of how to tune the strength of atomic SOC synthesized with GMF using harmonic trap resonance.

SUBMITTER: Wu LN

PROVIDER: S-EPMC5406833 | biostudies-other | 2017 Apr

REPOSITORIES: biostudies-other

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Harmonic trap resonance enhanced synthetic atomic spin-orbit coupling.

Wu Ling-Na LN Luo Xin-Yu XY Xu Zhi-Fang ZF Ueda Masahito M Wang Ruquan R You L L

Scientific reports 20170427

Spin-orbit coupling (SOC) plays an essential role in many exotic and interesting phenomena in condensed matter physics. In neutral-atom-based quantum simulations, synthetic SOC constitutes a key enabling element. The strength of SOC realized so far is limited by various reasons or constraints. This work reports tunable SOC synthesized with a gradient magnetic field (GMF) for atoms in a harmonic trap. Nearly ten-fold enhancement is observed when the GMF is modulated near the harmonic-trap resonan ...[more]

PMID: 28447670

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