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  • Letter
  • Open Access

Realizing robust edge-to-edge transport of atomic momentum states in a dynamically modulated synthetic lattice

Tao Yuan1,2, Chao Zeng1,2, Yi-Yi Mao1,2, Fei-Fei Wu1,2, Yan-Jun Xie1,2, Wen-Zhuo Zhang2, Han-Ning Dai1,2,3, Yu-Ao Chen1,2,3, and Jian-Wei Pan1,2,3

  • 1Hefei National Research Center for Physical Sciences at the Microscale and School of Physical Sciences, University of Science and Technology of China, Hefei 230026, China
  • 2Shanghai Research Center for Quantum Science and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China
  • 3Hefei National Laboratory, University of Science and Technology of China, Hefei 230088, China

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Phys. Rev. Research 5, L032005 – Published 12 July, 2023

DOI: https://doi.org/10.1103/PhysRevResearch.5.L032005

Abstract

Quantum transport between distant nodes that is robust to experimental imperfections is essential for quantum information processing. Here we experimentally demonstrate efficient and robust edge-to-edge transport of atomic momentum states in a synthetic lattice of Bose-Einstein condensate, simulating a dynamically modulated Su-Schrieffer-Heeger (SSH) model. This transport process relies on continuously controlling the effective nearest-neighbor couplings in the synthetic lattice, which constructs a unique chain between the left- and right-edge states. The robustness of such transport is protected by the chiral symmetry of the system, demonstrated by subjecting the lattices to coupling-strength disorders. Furthermore, we implement a splitter operation through an SSH model with a topological interface at its center. Our approach provides an efficient single operation to achieve robust momenta transport with potential applications in coherent quantum control in atom optics.

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Information

Phys. Rev. Research 5, L032005– Published 12 July, 2023
  • Received 31 January 2023
  • Accepted 16 June 2023
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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