Bright and dark solitary waves in a one-dimensional spin-polarized gas of fermionic atoms with p-wave interactions in a hard-wall trap

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M. D. Girardeau¹ and E. M. Wright^1,2
¹College of Optical Sciences, University of Arizona, Tucson, Arizona 85721, USA
²Department of Physics, University of Arizona, Tucson, Arizona 85721, USA

Received 4 December 2007; revised 19 March 2008; published 9 April 2008

Weelucidate the physics underlying the fact that both bright anddark solitary waves can arise in a one-dimensional spin-polarized gasof fermionic atoms with attractive three-dimensional p-wave interactions in ahard-wall trap. This is possible since the one-dimensional fermion systemcan be mapped to a system of bosons described bythe Lieb-Linger model with either repulsive or attractive delta -function interactionswhich can support solitary waves.

URL:	http://link.aps.org/doi/10.1103/PhysRevA.77.043612
DOI:	10.1103/PhysRevA.77.043612
PACS:	03.75.-b; 05.30.Fk 03.75.-b Matter waves 05.30.Fk Fermion systems and electron gas (quantum statistical mechanics) YEAR: 2008
KEYWORDS:	boson systems, fermion systems, solitons, spin polarised transport

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