Experimental Realization of a Fermionic Spin-Momentum Lattice.
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Publication Date
2022-06-17Journal Title
Phys Rev Lett
ISSN
0031-9007
Publisher
American Physical Society (APS)
Type
Article
This Version
AM
Metadata
Show full item recordCitation
Lauria, P., Kuo, W., Cooper, N., & Barreiro, J. T. (2022). Experimental Realization of a Fermionic Spin-Momentum Lattice.. Phys Rev Lett https://doi.org/10.1103/PhysRevLett.128.245301
Abstract
We experimentally realize a spin-momentum lattice with a homogeneously trapped Fermi gas. The lattice is created via cyclically rotated atom-laser couplings between three bare atomic spin states, and are such that they form a triangular lattice in a synthetic spin-momentum space. We demonstrate the lattice and explore its dynamics with spin- and momentum-resolved absorption imaging. This platform will provide new opportunities for synthetic spin systems and the engineering of topological bands. In particular, the use of three spin states in two spatial dimensions would allow the simulation of synthetic magnetic fields of high spatial uniformity, which would lead to ultranarrow Chern bands that support robust fractional quantum Hall states.
Keywords
cond-mat.quant-gas, cond-mat.quant-gas, physics.atom-ph
Sponsorship
Engineering and Physical Sciences Research Council (EP/P009565/1)
Simons Foundation (511029)
Identifiers
External DOI: https://doi.org/10.1103/PhysRevLett.128.245301
This record's URL: https://www.repository.cam.ac.uk/handle/1810/337255
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