Color superfluidity of neutral ultracold fermions in the presence of color-flip and color-orbit fields

@article{Kurkcuoglu2017ColorSO,
  title={Color superfluidity of neutral ultracold fermions in the presence of color-flip and color-orbit fields},
  author={Doga Murat Kurkcuoglu and Carlos Sa de Melo},
  journal={Physical Review A},
  year={2017},
  volume={97},
  pages={023632}
}
We describe how color superfluidity is modified in the presence of color-flip and color-orbit fields in the context of ultra-cold atoms, and discuss connections between this problem and that of color superconductivity in quantum chromodynamics. We consider s-wave contact interactions between different colors, and we identify superfluid phases, with five being nodal and one being fully gapped. When our system is described in a mixed color basis, the superfluid order parameter tensor is… 

Unconventional color superfluidity in ultra-cold fermions: Quintuplet pairing, quintuple point and pentacriticality

We describe the emergence of color superfluidity in ultra-cold fermions induced by color-orbit and color-flip fields that transform a conventional singlet-pairing s-wave system into an unconventional

Eigenspectrum, Chern numbers and phase diagrams of ultracold color-orbit-coupled SU(3) fermions in optical lattices

We study ultracold color fermions with three internal states, red, green, and blue, with $\mathrm{SU}(3)$ symmetry in optical lattices, when color-orbit coupling and color-flip fields are present.

Superfluid transition temperature and fluctuation theory of spin-orbit- and Rabi-coupled fermions with tunable interactions

We obtain the superfluid transition temperature of equal Rashba-Dresselhaus spin-orbitand Rabi-coupled Fermi superfluids, from the Bardeen-Cooper-Schrieffer (BCS) to Bose-Einstein condensate (BEC)

Emergent QCD Kondo effect in two-flavor color superconducting phase

We show that effective coupling strengths between ungapped and gapped quarks in the two-flavor color superconducting (2SC) phase are renormalized by logarithmic quantum corrections. We obtain a set

Topological Color-Hall Insulators: SU(3) Fermions in Optical Lattices.

We discuss the emergence of topological color insulators in optical lattices as quantum phases of SU(3) ultra-cold neutral fermions. We construct the Chern matrix and classify all insulating phases

Observation of Anomalous Decay of a Polarized Three-Component Fermi Gas

Systems of fermions with multiple internal states, such as quarks in quantum chromodynamics and nucleons in nuclear matter, are at the heart of some of the most complex quantum many-body problems.

Superconductivity in the twisted bilayer graphene: emergent mystery in the magic angle, the topological bosons and the Bardeen Cooper Schrieffer – Bose Einstein unconventional crossover

ABSTRACT Theory of superconductivity in twisted bilayer graphene (tBLG) is presented, based on the fact that Dirac fermions are pairing creating the topological bosons as consequence of topologically

Pairing and molecule formation along the BCS-BEC crossover for finite range potentials

We address the thermodynamics of the zero temperature BCS-BEC crossover of a balanced two component mixture of a finite range interacting fermions within a mean field approach. For the analysis we

References

SHOWING 1-10 OF 74 REFERENCES

High-density QCD and instantons

Abstract Instantons generate strong nonperturbative interactions between quarks. In vacuum, these interactions lead to chiral symmetry breaking and generate constituent quark masses on the order of

Unconventional Bose—Einstein Condensations from Spin-Orbit Coupling

According to the “no-node" theorem, the many-body ground state wavefunctions of conventional Bose—Einstein condensations (BEC) are positive-definite, thus time-reversal symmetry cannot be

Crystalline color superconductivity

Superfluidity in a three-flavor Fermi gas with SU(3) symmetry

We investigate the superfluidity and the associated Nambu-Goldstone modes in a three-flavor atomic Fermi gas with SU(3) global symmetry. The s-wave pairing occurs in flavor antitriplet channel due to

Evolution from BCS to BEC superfluidity in the presence of spin-orbit coupling

We discuss the evolution from BCS to BEC superfluids in the presence of spin-orbit coupling, and show that this evolution is just a crossover in the balanced case. The dependence of several

Quark hadron continuity in QCD with one flavor

We study QCD with one flavor at finite baryon density. In the limit of very high baryon density the system is expected to be a color superconductor. In the case of one flavor, the order parameter is

BCS-BEC crossover and topological phase transition in 3D spin-orbit coupled degenerate Fermi gases.

The quasiparticle excitations near the Fermi points realize the long-sought low-temperature analog of Weyl fermions of particle physics and can be probed using the experimentally realized momentum-resolved photoemission spectroscopy.

Quantum phases of interacting three-component fermions under the influence of spin-orbit coupling and Zeeman fields

We describe the quantum phases of interacting three component fermions in the presence of spin-orbit coupling, as well as linear and quadratic Zeeman fields. We classify the emerging superfluid

Quantum tricriticality and phase transitions in spin-orbit coupled Bose-Einstein condensates.

A spin-orbit coupled configuration of spin-1/2 interacting bosons with equal Rashba and Dresselhaus couplings is considered with special emphasis on the role of the interaction treated in the mean-field approximation.

Superfluid transition temperature of spin-orbit and Rabi coupled fermions with tunable interactions

We obtain the superfluid transition temperature of equal Rashba-Dresselhaus spin-orbit and Rabi coupled Fermi superfluids, from the Bardeen-Cooper-Schrieffer (BCS) to Bose-Einstein condensate (BEC)
...