Cited by 777Cold Atom Physics and Bose-Einstein CondensatesQuantum and electron transport phenomenaQuantum Mechanics and Non-Hermitian Physics

Creation of effective magnetic fields in optical lattices: the Hofstadter butterfly for cold neutral atoms

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Jaksch, D, Zoller, P·2003·New Journal of Physics

Abstract

We investigate the dynamics of neutral atoms in a 2D optical lattice which traps two distinct internal states of the atoms in different columns. Two Raman lasers are used to coherently transfer atoms from one internal state to the other, thereby causing hopping between the different columns. By adjusting the laser parameters appropriately we can induce a non-vanishing phase of particles moving along a closed path on the lattice. This phase is proportional to the enclosed area and we thus simulate a magnetic flux through the lattice. This set-up is described by a Hamiltonian identical to the one for electrons on a lattice subject to a magnetic field and thus allows us to study this equivalent situation under very well defined controllable conditions. We consider the limiting case of huge magnetic fields—which is not experimentally accessible for electrons in metals—where a fractal band structure, the Hofstadter butterfly, characterizes the system.

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Crossref · 10.1088/1367-2630/5/1/356

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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 [22]

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Research works printed but not linked: 5

  1. Mandel O, Greiner M, Widera A, Rom T, Haensch T W and Bloch I 2003 Preprint cond-mat/0301169 · arXiv
  2. Dorner U, Fedichev P, Jaksch D, Lewenstein M and Zoller P 2002 Preprint quant-ph/0212039 · arXiv
  3. Esslinger T and Molmer K 2002 Preprint cond-mat/0210324 · arXiv
  4. Jane E, Vidal G, Dür W, Zoller P and Cirac J I 2002 Preprint quant-ph/0207011 · arXiv
  5. Demikhovskii V Y and Khomitskiy D V 2002 Preprint cond-mat/0212629 · arXiv

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Authors
Jaksch, D., & Zoller, P.
Affiliations
Universität Innsbruck (AT)
Venue
New Journal of Physics
Published
2003-05-30
Volume
5
Pages
56-56
ISSN
1367-2630 (ISSN-L)
OpenAlex
W2116365249
Cited by
777
References
20
Citations by year
2026: 11 · 2025: 24 · 2024: 26 · 2023: 26 · 2022: 18 · 2021: 22 · 2020: 26 · 2019: 45 · 2018: 53 · 2017: 56 · 2016: 56 · 2015: 55 · 2014: 45 · 2013: 56 · 2012: 49
FWCI
8.64
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • New Journal of Physics (publishedVersion, cc-by)
  • arXiv (Cornell University) (submittedVersion)
  • CERN Document Server (European Organization for Nuclear Research) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Cold Atom Physics and Bose-Einstein Condensates
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum and electron transport phenomena
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Non-Hermitian Physics
Keywords
Hofstadter butterfly, optical lattices, cold neutral atoms, effective magnetic field, Raman coupling, Aharonov-Bohm phase, two-dimensional lattice, ultracold atoms

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