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Towards a measurement of the effective gauge field and the Born-Huang potential with atoms in chip traps
Department of Industrial Engineering, Gediz University, Menemen-Izmir, Turkey.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy. Uppsala universitet. (Quantum information theory)
Centre for Quantum Technologies, NUS, Singapore.
Centre for Quantum Technologies, NUS, Singapore.
2016 (English)Article in journal (Other academic) Submitted
Abstract [en]

We study magnetic traps with very high trap frequencies where the spin is coupled to the motion of the atom. This allows us to investigate how the Born-Oppenheimer approximation fails and how effective magnetic and electric fields appear as the consequence of the non-adiabatic dynamics. The results are based on exact numerical diagonalization of the full Hamiltonian describing the coupling between the internal and external degrees of freedom. The position in energy and the decay rate of the trapping states correspond to the imaginary part of the resonances of this Hamiltonian and are computed using the complex rotation method. 

Place, publisher, year, edition, pages
2016.
Keyword [en]
Cold atoms, atom chip, Born-Oppenheimer, effective gauge fields
National Category
Atom and Molecular Physics and Optics
Research subject
Physics with spec. in Atomic, Molecular and Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-294927OAI: oai:DiVA.org:uu-294927DiVA: diva2:931865
Funder
Swedish Research Council, D0413201
Available from: 2016-05-30 Created: 2016-05-30 Last updated: 2016-09-07

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arxiv:1605.09126

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Sjöqvist, Erik
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Atom and Molecular Physics and Optics

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ReferencesLink to record
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