Burrows, Kathryn A, Perrin, Hélène and Garraway, Barry M (2017) Nonadiabatic losses from radio-frequency-dressed cold-atom traps: beyond the Landau-Zener model. Physical Review A, 96 (2). ISSN 2469-9926
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PDF (Physical Review A 96, 023429 (2017) https://doi.org/10.1103/PhysRevA.96.023429)
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Abstract
Nonadiabatic decay rates for a radio-frequency-dressed magnetic trap are calculated using Fermi’s golden rule: that is, we examine the probability for a single atom to make transitions out of the dressed trap and into a continuum in the adiabatic limit, where perturbation theory can be applied. This approach can be compared to the semiclassical Landau-Zener theory of a resonant dressed atom trap, and it is found that, when carefully implemented, the Landau-Zener theory overestimates the rate of nonadiabatic spin-flip transitions in the adiabatic limit. This indicates that care is needed when determining requirements on trap Rabi frequency and magnetic-field gradient in practical atom traps.
Item Type: | Article |
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Schools and Departments: | School of Mathematical and Physical Sciences > Physics and Astronomy |
Research Centres and Groups: | Atomic, Molecular and Optical Physics Research Group |
Subjects: | Q Science > QC Physics |
Depositing User: | Billy Wichaidit |
Date Deposited: | 31 Aug 2017 11:12 |
Last Modified: | 31 Aug 2017 11:22 |
URI: | http://srodev.sussex.ac.uk/id/eprint/69946 |
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📧 Request an updateProject Name | Sussex Project Number | Funder | Funder Ref |
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Devices based on Entanglement in Cold Arrays of Trapped Atoms | G0340 | EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCIL | EP/I010394/1 |
UK Quantum Technology Hub for Sensors and Metrology | G1511 | EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCIL | EP/M013294/1 |