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Color Superfluidity and “Baryon” Formation in Ultracold Fermions

Open access
Rapp, Ákos, Zaránd, Gergely, Honerkamp, Carsten, Hofstetter, Walter·2007·Physical Review Letters

Abstract

We study fermionic atoms of three different internal quantum states (colors) in an optical lattice, which are interacting through attractive on site interactions, U<0. Using a variational calculation for equal color densities and small couplings, |U|<|UC|, a color superfluid state emerges with a tendency to domain formation. For |U|>|UC|, triplets of atoms with different colors form singlet fermions (trions). These phases are the analogies of the color superconducting and baryonic phases in QCD. In ultracold fermions, this transition is found to be of second order. Our results demonstrate that quantum simulations with ultracold gases may shed light on outstanding problems in quantum field theory.

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Metadata

Authors
Rapp, Á., Zaránd, G., Honerkamp, C., & Hofstetter, W.
Venue
Physical Review Letters
Published
2007-04-18
Volume
98
Issue
16
Pages
160405-160405
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W2002439297
Cited by
220
References
2
FWCI
15.07
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Color Superfluidity and “Baryon” Formation in Ultracold Fermions. https://app.cochat.ai/papers/10.1103/physrevlett.98.160405
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Rapp, Á., Zaránd, G., Honerkamp, C., & Hofstetter, W. (2007). Color Superfluidity and “Baryon” Formation in Ultracold Fermions. Physical Review Letters. https://doi.org/10.1103/physrevlett.98.160405

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