Spin-charge separation in ultracold quantum gases

We investigate the physical properties of quasi-1D quantum gases of fermionic atoms confined in harmonic traps. Using the fact that for a homogeneous gas the low-energy properties are exactly described by a Luttinger model, we analyze the nature and manifestations of spin-charge separation, where in...

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Bibliographic Details
Published in:Physical review letters 2003-01, Vol.90 (2), p.020401-020401, Article 020401
Main Authors: Recati, A, Fedichev, P O, Zwerger, W, Zoller, P
Format: Article
Language:English
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Summary:We investigate the physical properties of quasi-1D quantum gases of fermionic atoms confined in harmonic traps. Using the fact that for a homogeneous gas the low-energy properties are exactly described by a Luttinger model, we analyze the nature and manifestations of spin-charge separation, where in the case of atoms "spin" and "charge" refer to two internal atomic states and the atomic mass density, respectively. We discuss the necessary physical conditions and experimental limitations confronting possible experimental implementations.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.90.020401