Ground-state properties of dilute spinless fermions in fractional dimensions

Abstract

We analyze zero-temperature universal properties of the simplest Galilean-invariant model of spinless low-dimensional fermions with short-range two-body interactions. In particular, it is shown that after proper renormalization of the coupling constant, even the dilute system possesses rich phase diagram that includes the superfluid state and the metastable `upper branch' behavior.

arXiv comment5+epsilon pages, 5 figures, comments (criticism) are welcome

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Cited by in corpus (6)

• Stability against three-body clustering in one-dimensional spinless p-wave fermions
• Optical spin transport theory of spin-1/2 topological Fermi superfluids
• Duality between weak and strong interactions in quantum gases
• Thermodynamic contacts and breathing mode physics of 1D p-wave Fermi gases in the high temperature limit
• Non-Hermitian $p$-wave superfluid and effects of the inelastic three-body loss in a one-dimensional spin-polarized Fermi gas
• Efimov-like physics in fraction-dimensional Bose systems with three-body interaction