Phys. Rev. Lett. 103, 105304 (2009) [4 pages]Stability and Pairing in Quasi-One-Dimensional Bose-Fermi MixturesReceived 29 January 2009; revised 28 April 2009; published 4 September 2009 We consider a mixture of single-component bosonic and fermionic atoms in an array of coupled one-dimensional “tubes.” For an attractive Bose-Fermi interaction, we show that the system exhibits phase separation instead of the usual collapse. Moreover, above a critical intertube hopping, all first-order instabilities disappear in both attractive and repulsive mixtures. The possibility of suppressing instabilities in this system suggests a route towards the realization of paired phases, including a superfluid of p-wave pairs unique to the coupled-tube system, and quantum critical phenomena. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.103.105304
DOI:
10.1103/PhysRevLett.103.105304
PACS:
67.85.Pq, 03.75.Hh, 64.70.Tg
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