Dissipative double-well potential for cold atoms: Kramers rate and stochastic resonance
We experimentally study particle exchange in a dissipative double-well potential using laser-cooled atoms in a hybrid trap. We measure the particle hopping rate as a function of barrier height, temperature, and atom number. Single-particle resolution allows us to measure rates over more than 4 order...
Gespeichert in:
| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
9 December 2016
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| In: |
Physical review letters
Year: 2016, Jahrgang: 117, Heft: 24, Pages: 243005-1-243005-5 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.117.243005 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.117.243005 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.117.243005 
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| Verfasserangaben: | Ion Stroescu, David B. Hume and Markus K. Oberthaler |
MARC
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| 520 | |a We experimentally study particle exchange in a dissipative double-well potential using laser-cooled atoms in a hybrid trap. We measure the particle hopping rate as a function of barrier height, temperature, and atom number. Single-particle resolution allows us to measure rates over more than 4 orders of magnitude and distinguish the effects of loss and hopping. Deviations from the Arrhenius-law scaling at high barrier heights occur due to cold collisions between atoms within a well. By driving the system periodically, we characterize the phenomenon of stochastic resonance in the system response. | ||
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