dorsal/arxiv
View SchemaScattering of short laser pulses from trapped fermions
| Authors | T. Wong, Ozgur Mustecaplioglu, L. You, M. Lewenstein |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9910054 |
| URL | https://arxiv.org/abs/quant-ph/9910054 |
| DOI | 10.1103/PhysRevA.62.033608 |
Abstract
We investigate the scattering of intense short laser pulses off trapped cold fermionic atoms. We discuss the sensitivity of the scattered light to the quantum statistics of the atoms. The temperature dependence of the scattered light spectrum is calculated. Comparisons are made with a system of classical atoms who obey Maxwell-Boltzmann statistics. We find the total scattering increases as the fermions become cooler but eventually tails off at very low temperatures (far below the Fermi temperature). At these low temperatures the fermionic degeneracy plays an important role in the scattering as it inhibits spontaneous emission into occupied energy levels below the Fermi surface. We demonstrate temperature dependent qualitative changes in the differential and total spectrum can be utilized to probe quantum degeneracy of trapped Fermi gas when the total number of atoms are sufficiently large $(\geq 10^6)$. At smaller number of atoms, incoherent scattering dominates and it displays weak temperature dependence.
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"abstract": "We investigate the scattering of intense short laser pulses off trapped cold\nfermionic atoms. We discuss the sensitivity of the scattered light to the\nquantum statistics of the atoms. The temperature dependence of the scattered\nlight spectrum is calculated. Comparisons are made with a system of classical\natoms who obey Maxwell-Boltzmann statistics. We find the total scattering\nincreases as the fermions become cooler but eventually tails off at very low\ntemperatures (far below the Fermi temperature). At these low temperatures the\nfermionic degeneracy plays an important role in the scattering as it inhibits\nspontaneous emission into occupied energy levels below the Fermi surface. We\ndemonstrate temperature dependent qualitative changes in the differential and\ntotal spectrum can be utilized to probe quantum degeneracy of trapped Fermi gas\nwhen the total number of atoms are sufficiently large $(\\geq 10^6)$. At smaller\nnumber of atoms, incoherent scattering dominates and it displays weak\ntemperature dependence.",
"arxiv_id": "quant-ph/9910054",
"authors": [
"T. Wong",
"Ozgur Mustecaplioglu",
"L. You",
"M. Lewenstein"
],
"categories": [
"quant-ph",
"cond-mat"
],
"doi": "10.1103/PhysRevA.62.033608",
"title": "Scattering of short laser pulses from trapped fermions",
"url": "https://arxiv.org/abs/quant-ph/9910054"
},
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