Three-component fermion pairing in two dimensions

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We study pairing of an interacting three-component Fermi gas in two dimensions. By using a mean-field theory to decouple the interactions between different pairs of Fermi components, we study the free energy landscapes as a function of various system parameters including chemical potentials, binding energies, and temperature. We find that the s -wave pairing channel is determined by both chemical potentials and the interaction strengths between the three available channels. We find a second-order thermal phase transition and a series of first-order quantum phase transitions for a homogenous system as we change the parameters. In particular, for symmetric parameters, we find the simultaneous existence of three superfluid orders as well as re-entrant quantum phase transitions as we tune the parameters.

Original languageEnglish (US)
Article number013620
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume80
Issue number1
DOIs
StatePublished - Aug 6 2009

Fingerprint

fermions
binding energy
free energy
interactions
gases
temperature

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Three-component fermion pairing in two dimensions. / De Silva, Theja N.

In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 80, No. 1, 013620, 06.08.2009.

Research output: Contribution to journalArticle

@article{daaafbf0c07741e7966e6df54233089f,
title = "Three-component fermion pairing in two dimensions",
abstract = "We study pairing of an interacting three-component Fermi gas in two dimensions. By using a mean-field theory to decouple the interactions between different pairs of Fermi components, we study the free energy landscapes as a function of various system parameters including chemical potentials, binding energies, and temperature. We find that the s -wave pairing channel is determined by both chemical potentials and the interaction strengths between the three available channels. We find a second-order thermal phase transition and a series of first-order quantum phase transitions for a homogenous system as we change the parameters. In particular, for symmetric parameters, we find the simultaneous existence of three superfluid orders as well as re-entrant quantum phase transitions as we tune the parameters.",
author = "{De Silva}, {Theja N.}",
year = "2009",
month = "8",
day = "6",
doi = "10.1103/PhysRevA.80.013620",
language = "English (US)",
volume = "80",
journal = "Physical Review A",
issn = "2469-9926",
publisher = "American Physical Society",
number = "1",

}

TY - JOUR

T1 - Three-component fermion pairing in two dimensions

AU - De Silva, Theja N.

PY - 2009/8/6

Y1 - 2009/8/6

N2 - We study pairing of an interacting three-component Fermi gas in two dimensions. By using a mean-field theory to decouple the interactions between different pairs of Fermi components, we study the free energy landscapes as a function of various system parameters including chemical potentials, binding energies, and temperature. We find that the s -wave pairing channel is determined by both chemical potentials and the interaction strengths between the three available channels. We find a second-order thermal phase transition and a series of first-order quantum phase transitions for a homogenous system as we change the parameters. In particular, for symmetric parameters, we find the simultaneous existence of three superfluid orders as well as re-entrant quantum phase transitions as we tune the parameters.

AB - We study pairing of an interacting three-component Fermi gas in two dimensions. By using a mean-field theory to decouple the interactions between different pairs of Fermi components, we study the free energy landscapes as a function of various system parameters including chemical potentials, binding energies, and temperature. We find that the s -wave pairing channel is determined by both chemical potentials and the interaction strengths between the three available channels. We find a second-order thermal phase transition and a series of first-order quantum phase transitions for a homogenous system as we change the parameters. In particular, for symmetric parameters, we find the simultaneous existence of three superfluid orders as well as re-entrant quantum phase transitions as we tune the parameters.

UR - http://www.scopus.com/inward/record.url?scp=68949109736&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=68949109736&partnerID=8YFLogxK

U2 - 10.1103/PhysRevA.80.013620

DO - 10.1103/PhysRevA.80.013620

M3 - Article

AN - SCOPUS:68949109736

VL - 80

JO - Physical Review A

JF - Physical Review A

SN - 2469-9926

IS - 1

M1 - 013620

ER -