Spin waves and Collisional Frequency Shifts of a Trapped-Atom Clock
| Autor: | Christian Deutsch, Wilfried Maineult, Jakob Reichel, Peter Rosenbusch, Kurt Gibble |
|---|---|
| Přispěvatelé: | Laboratoire national de métrologie et d'essais - Systèmes de Référence Temps-Espace (LNE - SYRTE), Systèmes de Référence Temps Espace (SYRTE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Physics
[PHYS]Physics [physics] Optical lattice Quantum Physics Atomic Physics (physics.atom-ph) General Physics and Astronomy FOS: Physical sciences Fermion 01 natural sciences Atomic clock 010305 fluids & plasmas Pulse (physics) Physics - Atomic Physics Spin wave 0103 physical sciences Atomic physics 010306 general physics Quantum statistical mechanics Quantum Physics (quant-ph) [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Hyperfine structure ComputingMilieux_MISCELLANEOUS Spin-½ |
| Zdroj: | Physical Review Letters Physical Review Letters, 2012, 109 (2), ⟨10.1103/PhysRevLett.109.020407⟩ Physical Review Letters, American Physical Society, 2012, 109 (2), ⟨10.1103/PhysRevLett.109.020407⟩ |
| ISSN: | 0031-9007 1079-7114 |
| Popis: | We excite spin-waves with spatially inhomogeneous pulses and study the resulting frequency shifts of a chip-scale atomic clock of trapped $^{87}$Rb. The density-dependent frequency shifts of the hyperfine transition simulate the s-wave collisional frequency shifts of fermions, including those of optical lattice clocks. As the spin polarizations oscillate in the trap, the frequency shift reverses and it depends on the area of the second Ramsey pulse, exhibiting a predicted beyond mean-field frequency shift. Numerical and analytic models illustrate the observed behaviors. Will appear soon in Physical Review Letters - Typos corrected |
| Databáze: | OpenAIRE |
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