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Phys. Rev. Lett. 92, 133202 (2004) [4 pages]

Tuning the Interactions of Spin-Polarized Fermions Using Quasi-One-Dimensional Confinement

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Brian E. Granger1 and D. Blume2
1ITAMP, Harvard-Smithsonian CFA, Cambridge, Massachusetts 02138, USA
2Department of Physics, Washington State University, Pullman, Washington 99164-2814, USA

Received 15 July 2003; published 2 April 2004

We develop a multichannel scattering theory for atom-atom collisions in quasi-1D geometries. We apply our general framework to the low energy scattering of two spin-polarized fermions and show that tightly confined fermions have infinitely strong interactions at a particular value of the 3D, free-space p-wave scattering volume. Moreover, we describe a mapping of this strongly interacting system of two quasi-1D fermions to a weakly interacting system of two 1D bosons.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.92.133202
DOI:
10.1103/PhysRevLett.92.133202
PACS:
34.10.+x, 03.75.–b, 34.50.–s