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Physics > Atomic Physics

Title: Coherent control of superfluidity in a Fermi gas of atoms

Abstract: We theoretically examine photoassociation of a two-component Fermi degenerate gas, focusing on light-induced atom-atom interactions as a means to raise the critical temperature of the BCS transition to a superfluid state. As it stands, photoassociation-induced superfluidity is limited by spontaneous decay to experimentally inconvenient light intensities [Mackie et al., Opt. Express 8, 118 (2000)]. We therefore propose to use coherent control in photoassociation to a pair of molecular levels to cancel spontaneous emission, whereby the BCS transition should occur within reach of current experimental techniques.
Comments: 2 pages, 1 table, 17 references; submission pending decision on venue; revised version: 3 pages, 23 refs, corrects mistaken attempt at one-laser phase control with switch to detuning control- conclusions unchanged; submitted to PRL
Subjects: Atomic Physics (physics.atom-ph); Soft Condensed Matter (cond-mat.soft); Superconductivity (cond-mat.supr-con); Chemical Physics (physics.chem-ph); Quantum Physics (quant-ph)
Cite as: arXiv:physics/0104043v2 [physics.atom-ph]

Submission history

From: Matt Mackie [view email]
[v1] Fri, 13 Apr 2001 19:18:15 GMT (6kb)
[v2] Wed, 12 Sep 2001 11:34:46 GMT (8kb)