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Spin-orbit-coupled ...
Spin-orbit-coupled Bose-Einstein condensate in a tilted optical lattice
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- Larson, Jonas (författare)
- NORDITA, Stockholm, Sweden
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- Martikainen, Jani-Petri (författare)
- NORDITA Stockholm, Sweden
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- Collin, Anssi (författare)
- NORDITA Stockholm, Sweden
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- Sjöqvist, Erik (författare)
- Uppsala universitet,Kvantkemi,Quantum information theory
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(creator_code:org_t)
- APS, 2010
- 2010
- Engelska.
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Ingår i: Physical Review A. Atomic, Molecular, and Optical Physics. - : APS. - 1050-2947 .- 1094-1622. ; 82:4, s. 043620-
- Relaterad länk:
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http://arxiv.org/abs...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Bloch oscillations appear for a particle in a weakly tilted periodic potential. The intrinsic spin Hall effect is an outcome of a spin-orbit coupling. We demonstrate that both of these phenomena can be realized simultaneously in a gas of weakly interacting ultracold atoms exposed to a tilted optical lattice and to a set of spatially dependent light fields inducing an effective spin-orbit coupling. It is found that both the spin Hall and the Bloch oscillation effects may coexist, showing, however, a strong correlation between the two. These correlations are manifested as a transverse spin current oscillating in-phase with the Bloch oscillations. On top of the oscillations originating from the periodicity of the model, a trembling motion is found which is believed to be atomic Zitterbewegung. It is argued that the damping of these Zitterbewegung oscillations may to a large extent be prevented in the present setup considering a periodic optical lattice potential.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- optical lattice
- Bose-Einstein condensate
- spin-Hall effect
- Bloch oscillations
- Atomic physics
- Atomfysik
- Condensed matter physics
- Kondenserade materiens fysik
- Fysik
- Physics
- Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik
- Physics with spec. in Atomic, Molecular and Condensed Matter Physics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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