Spin-charge separation in ultracold quantum gases

Year: 2003

Authors: Recati A., Fedichev P.O., Zwerger W, Zoller P.

Autors Affiliation: Institute for Theoretical Physics, University of Innsbruck, A–6020 Innsbruck, Austria;
Dipartimento di Fisica, Università di Trento and INFM, I-38050 Povo, Italy;
Sektion Physik, Universität München, Theresienstrasse 37/III, D-80333 München, Germany

Abstract: 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.


Volume: 90 (2)      Pages from: 020401-1  to: 020401-4

KeyWords: Luttinger liquid; ultra cold fermi gases; exactly solvable models
DOI: 10.1103/PhysRevLett.90.020401

Citations: 133
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