Chiral Bloch-Zener oscillations of spin-orbit coupled cold atoms in an optical superlattice

Zhe Han Li; Lu Zhou; Yan Li

doi:10.1088/1361-6455/abd879

Chiral Bloch-Zener oscillations of spin-orbit coupled cold atoms in an optical superlattice

Zhe Han Li
, Lu Zhou
, Yan Li

School of Physics and Electronic Science

East China Normal University

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

We study the Bloch oscillation (BO) dynamics of spin-orbit coupled cold atoms in a one-dimensional Su-Schrieffer-Heeger optical lattice. The Hamiltonian of our system can be mapped into a tilted SSH ladder pierced by an effective magnetic flux. Based on the calculation of Wannier-Stark states, we investigate dynamical properties of BOs with the chiral character of spin-momentum locking. Importantly, the chiral Bloch-Zener oscillations can be induced by adjusting system parameters. The corresponding Landau-Zener (LZ) tunneling probability is analytically derived by the LZ model and we found a good agreement with the numerical simulation.

Original language	English
Article number	035004
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Volume	54
Issue number	3
DOIs	https://doi.org/10.1088/1361-6455/abd879
State	Published - 20 Jan 2021

Keywords

Chiral bloch-zener oscillation
Optical superlattice
Spin-orbit coupling

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10.1088/1361-6455/abd879

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title = "Chiral Bloch-Zener oscillations of spin-orbit coupled cold atoms in an optical superlattice",

abstract = "We study the Bloch oscillation (BO) dynamics of spin-orbit coupled cold atoms in a one-dimensional Su-Schrieffer-Heeger optical lattice. The Hamiltonian of our system can be mapped into a tilted SSH ladder pierced by an effective magnetic flux. Based on the calculation of Wannier-Stark states, we investigate dynamical properties of BOs with the chiral character of spin-momentum locking. Importantly, the chiral Bloch-Zener oscillations can be induced by adjusting system parameters. The corresponding Landau-Zener (LZ) tunneling probability is analytically derived by the LZ model and we found a good agreement with the numerical simulation.",

keywords = "Chiral bloch-zener oscillation, Optical superlattice, Spin-orbit coupling",

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T1 - Chiral Bloch-Zener oscillations of spin-orbit coupled cold atoms in an optical superlattice

AU - Li, Zhe Han

AU - Zhou, Lu

AU - Li, Yan

PY - 2021/1/20

Y1 - 2021/1/20

N2 - We study the Bloch oscillation (BO) dynamics of spin-orbit coupled cold atoms in a one-dimensional Su-Schrieffer-Heeger optical lattice. The Hamiltonian of our system can be mapped into a tilted SSH ladder pierced by an effective magnetic flux. Based on the calculation of Wannier-Stark states, we investigate dynamical properties of BOs with the chiral character of spin-momentum locking. Importantly, the chiral Bloch-Zener oscillations can be induced by adjusting system parameters. The corresponding Landau-Zener (LZ) tunneling probability is analytically derived by the LZ model and we found a good agreement with the numerical simulation.

AB - We study the Bloch oscillation (BO) dynamics of spin-orbit coupled cold atoms in a one-dimensional Su-Schrieffer-Heeger optical lattice. The Hamiltonian of our system can be mapped into a tilted SSH ladder pierced by an effective magnetic flux. Based on the calculation of Wannier-Stark states, we investigate dynamical properties of BOs with the chiral character of spin-momentum locking. Importantly, the chiral Bloch-Zener oscillations can be induced by adjusting system parameters. The corresponding Landau-Zener (LZ) tunneling probability is analytically derived by the LZ model and we found a good agreement with the numerical simulation.

KW - Chiral bloch-zener oscillation

KW - Optical superlattice

KW - Spin-orbit coupling

UR - https://www.scopus.com/pages/publications/85102359613

U2 - 10.1088/1361-6455/abd879

DO - 10.1088/1361-6455/abd879

M3 - 文章

AN - SCOPUS:85102359613

SN - 0953-4075

VL - 54

JO - Journal of Physics B: Atomic, Molecular and Optical Physics

JF - Journal of Physics B: Atomic, Molecular and Optical Physics

IS - 3

M1 - 035004

ER -

Chiral Bloch-Zener oscillations of spin-orbit coupled cold atoms in an optical superlattice

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