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.

4 pages, 3 figures, minor changes and improved introduction, published version

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Cited by in corpus (6)

• Ultra-cold Polarized Fermi Gases
• Excitation spectra and rf-response near the polaron-to-molecule transition from the functional renormalization group
• Phase structure of mass- and spin-imbalanced unitary Fermi gases
• Phase structure of spin-imbalanced unitary Fermi gases
• Imaginary polarization as a way to surmount the sign problem in ab initio calculations of spin-imbalanced Fermi gases
• Bose polaron in spherically symmetric trap potentials: Ground states with zero and lower angular momenta