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Realization of the Hofstadter Hamiltonian with Ultracold Atoms in Optical Lattices

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Aidelsburger, M., Atala, M., Lohse, M., Barreiro, J. T., Paredes, B., Bloch, I.·2013·Physical Review Letters

Abstract

We demonstrate the experimental implementation of an optical lattice that allows for the generation of large homogeneous and tunable artificial magnetic fields with ultracold atoms. Using laser-assisted tunneling in a tilted optical potential, we engineer spatially dependent complex tunneling amplitudes. Thereby, atoms hopping in the lattice accumulate a phase shift equivalent to the Aharonov-Bohm phase of charged particles in a magnetic field. We determine the local distribution of fluxes through the observation of cyclotron orbits of the atoms on lattice plaquettes, showing that the system is described by the Hofstadter model. Furthermore, we show that for two atomic spin states with opposite magnetic moments, our system naturally realizes the time-reversal-symmetric Hamiltonian underlying the quantum spin Hall effect; i.e., two different spin components experience opposite directions of the magnetic field.

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Show all 7 references

Research works printed but not linked: 40

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Metadata

Authors
Aidelsburger, M., Atala, M., Lohse, M., Barreiro, J. T., Paredes, B., & Bloch, I.
Venue
Physical Review Letters
Published
2013-10-28
Volume
111
Issue
18
Pages
185301-185301
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W2063327258
Cited by
1,435
References
7
FWCI
70.59
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: Realization of the Hofstadter Hamiltonian with Ultracold Atoms in Optical Lattices. https://app.cochat.ai/papers/10.1103/physrevlett.111.185301
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Aidelsburger, M., Atala, M., Lohse, M., Barreiro, J. T., Paredes, B., & Bloch, I. (2013). Realization of the Hofstadter Hamiltonian with Ultracold Atoms in Optical Lattices. Physical Review Letters. https://doi.org/10.1103/physrevlett.111.185301

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.