dorsal/arxiv
View SchemaProbing the quantum state of a guided atom laser pulse
| Authors | Kevin L. Moore, Subhadeep Gupta, Kater W. Murch, Dan M. Stamper-Kurn |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0606062 |
| URL | https://arxiv.org/abs/quant-ph/0606062 |
| DOI | 10.1103/PhysRevLett.97.180410 |
Abstract
We describe bichromatic superradiant pump-probe spectroscopy as a tomographic probe of the Wigner function of a dispersing particle beam. We employed this technique to characterize the quantum state of an ultracold atomic beam, derived from a Rb-87 Bose-Einstein condensate, as it propagated in a 2.5 mm diameter circular waveguide. Our measurements place an upper bound on the longitudinal phase-space area occupied by the 300,000 atom beam of 9(1) $\hbar$ and a lower bound on the coherence length (L > 13 microns). These results are consistent with full quantum degeneracy after multiple orbits around the waveguide.
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"abstract": "We describe bichromatic superradiant pump-probe spectroscopy as a tomographic\nprobe of the Wigner function of a dispersing particle beam. We employed this\ntechnique to characterize the quantum state of an ultracold atomic beam,\nderived from a Rb-87 Bose-Einstein condensate, as it propagated in a 2.5 mm\ndiameter circular waveguide. Our measurements place an upper bound on the\nlongitudinal phase-space area occupied by the 300,000 atom beam of 9(1) $\\hbar$\nand a lower bound on the coherence length (L \u003e 13 microns). These results are\nconsistent with full quantum degeneracy after multiple orbits around the\nwaveguide.",
"arxiv_id": "quant-ph/0606062",
"authors": [
"Kevin L. Moore",
"Subhadeep Gupta",
"Kater W. Murch",
"Dan M. Stamper-Kurn"
],
"categories": [
"quant-ph",
"cond-mat.soft"
],
"doi": "10.1103/PhysRevLett.97.180410",
"title": "Probing the quantum state of a guided atom laser pulse",
"url": "https://arxiv.org/abs/quant-ph/0606062"
},
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