Volume 109, Number 5, March 2015
|Number of page(s)||6|
|Published online||10 March 2015|
Simulation of two-flavor symmetry-locking phases in ultracold fermionic mixtures
1 Departament de Física, Universitat Autònoma de Barcelona - E-08193 Bellaterra, Spain
2 IPCMS (UMR 7504) and ISIS (UMR 7006), Université de Strasbourg and CNRS - Strasbourg, France
3 CNR-IOM DEMOCRITOS Simulation Center - Via Bonomea 265, I-34136 Trieste, Italy
4 SISSA and INFN, Sezione di Trieste - Via Bonomea 265, I-34136 Trieste, Italy
5 London Centre for Nanotechnology and Computer Science, University College London - 17-19 Gordon Street, London, WC1H 0AH, UK
6 University of Pisa, Department of Physics “E. Fermi” and INFN - Pisa, Italy
Received: 4 November 2014
Accepted: 12 February 2015
We describe an ultracold fermionic set-up where it is possible to synthesize a superfluid phase with symmetry obtained by locking independent invariance groups of the normal state. In this phase, named two-flavor symmetry-locking (TFSL) phase, non-Abelian fractional vortices with semi-integer flux and gapless non-Abelian Goldstone modes localized on them appear. Considerations on the possible experimental realization of the TFSL are also provided.
PACS: 03.75.Mn – Multicomponent condensates; spinor condensates / 03.75.Lm – Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations / 12.38.-t – Quantum chromodynamics
© EPLA, 2015
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