Finite-size effects in the two-dimensional BCS-BEC crossover
arXiv:2401.06054 · doi:10.1103/PhysRevB.109.104511
Abstract
We study the finite-size effects on the BCS-BEC crossover in two dimensions, occurring in confined fermionic superfluids. We analyze several thermodynamic properties, such as the chemical potential, the energy gap and the superfluid density, taking into account unavoidable quantum fluctuations, and, by means of renormalization group procedure, we detect the putative Berezinskii-Kosterlitz-Thouless phase transition at finite-size.
arXiv comment8 pages, 5 figures, accepted for publication in Physical Review B as an article
References in corpus (16)
- Berezinskii-Kosterlitz-Thouless Crossover in a Trapped Atomic Gas
- Quantum Gases in Optical Boxes
- Observation of the Berezinskii-Kosterlitz-Thouless Phase Transition in an Ultracold Fermi Gas
- Evolution from BCS Superconductivity to Bose Condensation: Analytic Results for the crossover in three dimensions
- Broadening of the Beresinkii-Kosterlitz-Thouless superconducting transition by inhomogeneity and finite-size effects
- Equation of State of Ultracold Fermions in the 2D BEC-BCS Crossover Region
- Sound propagation in a uniform superfluid two-dimensional Bose gas
- Vortex-Antivortex Lattice in Ultra-Cold Fermi Gases
- Quantum fluctuations in the BCS-BEC crossover of two-dimensional Fermi gases
- Observation of first and second sound in a BKT superfluid
- Sound propagation and quantum limited damping in a two-dimensional Fermi gas
- Berezinskii-Kosterlitz-Thouless transition in trapped quasi-two-dimensional Fermi gas near a Feshbach resonance
- Topological superfluid transition in bubble-trapped condensates
- Finite-temperature quantum fluctuations in two-dimensional Fermi superfluids
- Vortices and antivortices in two-dimensional ultracold Fermi gases
- Berezinskii-Kosterlitz-Thouless phase transition with Rabi-coupled bosons