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Atomic lattice exci...
Atomic lattice excitons : from condensates to crystals
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- Kantian, A (författare)
- Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, A-6020 Innsbruck, Austria;Institute for Theoretical Physics, University of Innsbruck, A-6020 Innsbruck, Austria
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- Daley, A J (författare)
- Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, A-6020 Innsbruck, Austria;Institute for Theoretical Physics, University of Innsbruck, A-6020 Innsbruck, Austria
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- Törmä, P (författare)
- Nanoscience Center, Department of Physics, University of Jyväskylä, PO Box 35, FIN-40014, Finland
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- Zoller, P (författare)
- Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, A-6020 Innsbruck, Austria;Institute for Theoretical Physics, University of Innsbruck, A-6020 Innsbruck, Austria
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(creator_code:org_t)
- 2007-11-13
- 2007
- Engelska.
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Ingår i: New Journal of Physics. - : IOP Publishing. - 1367-2630. ; 9:11, s. 407-407
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Abstract
Ämnesord
Stäng
- We discuss atomic lattice excitons (ALEs), bound particleâhole pairs formed by fermionic atoms in two bands of an optical lattice. Such a system provides a clean set-up, with tunable masses and interactions, to study fundamental properties of excitons including exciton condensation. We also find that for a large effective mass ratio between particles and holes, effective long-range interactions can mediate the formation of an exciton crystal, for which superfluidity is suppressed. Using a combination of mean-field treatments, bosonized theory based on a BornâOppenheimer approximation, and one-dimensional (1D) numerical computation, we discuss the properties of ALEs under varying conditions, and discuss in particular their preparation and measurement.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
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