Finite-size and confinement effects in spin-polarized trapped Fermi gases

Abstract

We calculate the energy of a single fermion interacting resonantly with a Fermi sea of different-species fermions in asymmetric traps, and show that finite particle numbers and the trap geometry impact the phase structure and the critical polarization. Our findings contribute to understanding some experimental discrepancies in spin-polarized Fermi gases as finite-size and confinement effects.

arXiv comment4 pages, 3 figures, minor changes and improved introduction, published version

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Cited by in corpus (17)

• Fermion Interactions and Universal Behavior in Strongly Interacting Theories
• Ultra-cold Polarized Fermi Gases
• Excitation spectra and rf-response near the polaron-to-molecule transition from the functional renormalization group
• Functional renormalization group approach to the BCS-BEC crossover
• Attractive Fermi polarons at nonzero temperature with finite impurityconcentration
• Phase structure of mass- and spin-imbalanced unitary Fermi gases
• Phase structure of spin-imbalanced unitary Fermi gases
• Evaporative depolarization and spin transport in a unitary trapped Fermi gas
• Metastability in Spin-Polarized Fermi Gases
• Imaginary polarization as a way to surmount the sign problem in ab initio calculations of spin-imbalanced Fermi gases
• Competition between Normal Superfluidity and Larkin-Ovchinnikov Phases of Polarized Fermi Gases in Elongated Traps
• One-dimensional Fermi polaron in a combined harmonic and periodic potential
• Finite-size and Particle-number Effects in an Ultracold Fermi Gas at Unitarity
• Phases of spin- and mass-imbalanced ultracold Fermi gases in harmonic traps
• Dimensional crossover in ultracold Fermi gases from Functional Renormalisation
• Bose polaron in spherically symmetric trap potentials: Ground states with zero and lower angular momenta
• In-medium bound-state formation and inhomogeneous condensation in Fermi gases in a hard-wall box