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Title: Topological pumping in Aharonov–Bohm rings
Authors: Haug, T.
Dumke, R. 
Kwek, L.-C. 
Amico, L. 
Issue Date: 2019
Publisher: Nature Research
Citation: Haug, T., Dumke, R., Kwek, L.-C., Amico, L. (2019). Topological pumping in Aharonov–Bohm rings. Communications Physics 2 (1) : 127. ScholarBank@NUS Repository.
Rights: Attribution 4.0 International
Abstract: Topological Thouless pumping and Aharonov–Bohm effect are both fundamental effects enabled by the topological properties of the system. Here, we study both effects together: topological pumping of interacting particles through Aharonov–Bohm rings. This system can prepare highly entangled many-particle states, transport them via topological pumping and interfere with them, revealing a fractional flux quantum. The type of the generated state is revealed by non-trivial Aharonov–Bohm interference patterns that could be used for quantum sensing. The reflections induced by the interference result from transitions between topological bands. Specific bands allow transport with a band gap scaling as the square-root of the particle number. Our system paves a new way for a combined system of state preparation and topological protected transport. © 2019, The Author(s).
Source Title: Communications Physics
ISSN: 23993650
DOI: 10.1038/s42005-019-0229-2
Rights: Attribution 4.0 International
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