Finite Temperature Phase Diagram of Quasi-Two-Dimensional Imbalanced Fermi Gases Beyond Mean-Field

Abstract

We investigate the superfluid transition temperature of quasi-two-dimensional imbalanced Fermi gases beyond the mean-field approximation, through the second-order (or induced) interaction effects. For a balanced Fermi system the transition temperature is suppressed by a factor $\approx 2.72$. For imbalanced Fermi systems, the polarization and transition temperature of the tricritical point are significantly reduced as the two-body binding energy $|{\epsilon }_B|$ increases.

arXiv comment6 pages, 3 figures

References in corpus (25)

• Pairing and Phase Separation in a Polarized Fermi Gas
• Observation of Bose-Einstein Condensation of Molecules
• Attractive and repulsive Fermi polarons in two dimensions
• Interatomic collisions in a tightly confined Bose gas
• Direct Observation of the Superfluid Phase Transition in Ultracold Fermi Gases
• Phase diagram of a two-component Fermi gas with resonant interactions
• Phase separation in asymmetrical fermion superfluids
• Influence of Induced Interactions on the Superfluid Transition in Dilute Fermi Gases
• Critical Point of a Weakly Interacting Two-Dimensional Bose Gas
• Phase Fluctuations and Pseudogap Phenomena
• Observation of a pairing pseudogap in a two-dimensional Fermi gas
• Radiofrequency spectroscopy of a strongly interacting two-dimensional Fermi gas
• Observation of a two-dimensional Fermi gas of atoms
• Two-Dimensional Weakly Interacting Bose Gas in the Fluctuation Region
• Superfluid transition in quasi2D Fermi gases
• Cold asymmetrical fermion superfluids
• Vortex-Antivortex Lattice in Ultra-Cold Fermi Gases
• Berezinskii-Kosterlitz-Thouless transition in trapped quasi-two-dimensional Fermi gas near a Feshbach resonance
• The effect of population imbalance on the Berezinskii-Kosterlitz-Thouless phase transition in a superfluid Fermi gas
• Quantum Criticality and Superconductivity in Quasi-Two-Dimensional Dirac Electronic Systems
• Superfluid pairing between fermions with unequal masses
• The induced interaction in a Fermi gas with a BEC-BCS crossover
• Imbalanced Fermi superfluid in a one-dimensional optical potential
• Induced interactions for ultracold Fermi gases in optical lattices
• Temperature Effects in a Fermi Gas with Population Imbalance

Cited by in corpus (13)

• Quantum fluctuations in the BCS-BEC crossover of two-dimensional Fermi gases
• Spin-Imbalanced Quasi-Two-Dimensional Fermi Gases
• Entanglement between pairing and screening in the Gorkov-Melik-Barkhudarov correction to the critical temperature throughout the BCS-BEC crossover
• Mechanism for enhancement of superconductivity in multi-band systems with odd parity hybridization
• Induced interactions in the BCS-BEC crossover of two-dimensional Fermi gases with Rashba spin-orbit coupling
• Nesting and lifetime effects in the FFLO state of quasi-one-dimensional imbalanced Fermi gases
• Influence of Induced Interactions on Superfluid Properties of Quasi-Two Dimensional Dilute Fermi Gases With Spin-Orbit Coupling
• Two-dimensional spin-imbalanced Fermi gases at non-zero temperature: Phase separation of a non-condensate
• Toward precision Fermi liquid theory in two dimensions
• The Gor'kov and Melik-Barkhudarov correction to an imbalanced Fermi gas in the presence of impurities
• The Gor'kov and Melik-Barkhudarov correction to the mean-field critical field transition to Fulde-Ferrell-Larkin-Ovchinnikov states
• Induced p-wave Superfluidity in Imbalanced Fermi Gases in a Synthetic Gauge Field
• Temporal fluctuation induced order in conventional superconductors