Collective oscillations of a Fermi gas near a Feshbach resonance

Theja N. De Silva and Erich J. Mueller
Phys. Rev. A 72, 063614 – Published 15 December 2005

Abstract

A sum rule approach is used to calculate the zero temperature oscillation frequencies of a two component trapped atomic Fermi gas in the Bardeen, Cooper, and Schrieffer–Bose Einstein condensation crossover region. These sum rules are evaluated using a local density approximation which explicitly includes Feshbach molecules. Breathing modes show nonmonotonic behavior as a function of the interaction strength, while quadrupole modes are insensitive to interactions for both spherically symmetric and axially symmetric traps. Quantitative agreement is found with experiments on atomic Li6 systems and with other theoretical approaches.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 18 August 2005

DOI:https://doi.org/10.1103/PhysRevA.72.063614

©2005 American Physical Society

Authors & Affiliations

Theja N. De Silva1,2,* and Erich J. Mueller1,†

  • 1Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853, USA
  • 2Department of Physics, University of Ruhuna, Matara, Sri Lanka

  • *Email address: thejad@ccmr.cornell.edu
  • Email address: emueller@ccmr.cornell.edu

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 72, Iss. 6 — December 2005

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×