Experimental Realization of Strong Effective Magnetic Fields in an Optical Lattice
Open accessAbstract
We use Raman-assisted tunneling in an optical superlattice to generate large tunable effective magnetic fields for ultracold atoms. When hopping in the lattice, the accumulated phase shift by an atom is equivalent to the Aharonov-Bohm phase of a charged particle exposed to a staggered magnetic field of large magnitude, on the order of 1 flux quantum per plaquette. We study the ground state of this system and observe that the frustration induced by the magnetic field can lead to a degenerate ground state for noninteracting particles. We provide a measurement of the local phase acquired from Raman-induced tunneling, demonstrating time-reversal symmetry breaking of the underlying Hamiltonian. Furthermore, the quantum cyclotron orbit of single atoms in the lattice exposed to the magnetic field is directly revealed.
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Control over the sign can be acquired by dynamical modulation of the lattice, Raman-assisted tunneling or embedding defects in infinite arrays.
“Control over this sign can be acquired by dynamical modulation of the lattice [16-21], Raman-assisted tunneling [22, 23] or embedding defects in infinite arrays [24].”
From Universal Sign Control of Coupling in Tight-Binding Lattices (2016) · cites this paper as [23]
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- Authors
- Aidelsburger, M., Atala, M., Nascimbène, S., Trotzky, S., Chen, Y.-A., & Bloch, I.
- Affiliations
- Max Planck Institute of Quantum Optics (DE)
- Centre National de la Recherche Scientifique (FR)
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2011-12-12
- Volume
- 107
- Issue
- 25
- Pages
- 255301-255301
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2012813559
- Cited by
- 775
- References
- 30
- Citations by year
- 2026: 29 · 2025: 34 · 2024: 32 · 2023: 40 · 2022: 34 · 2021: 36 · 2020: 55 · 2019: 46 · 2018: 55 · 2017: 51 · 2016: 64 · 2015: 77 · 2014: 79 · 2013: 83 · 2012: 58
- FWCI
- 38.29
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Licence
- Locations
- Physical Review Letters (publishedVersion)
- PubMed (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- HAL (submittedVersion)
- Max Planck Institute for Plasma Physics (submittedVersion)
- arXiv (Cornell University)
- Funders
- Defense Advanced Research Projects Agency
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Cold Atom Physics and Bose-Einstein Condensates
- Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Advanced Condensed Matter Physics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Non-Hermitian Physics
- Keywords
- effective magnetic field, optical superlattice, ultracold atoms, Aharonov-Bohm phase, staggered magnetic field, ground state degeneracy, time-reversal symmetry breaking, flux quantum
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