2019/08/28 by Pietro M. Bonetti, Maria Luisa Chiofalo, Bonetti, Pietro Maria +1
Mathematics · #FOS: Physical sciences #Numerical methods for differential equations #Quantum Gases (cond-mat.quant-gas)
paper · pdf · doi:10.48550/arxiv.1908.10648
openalex publication_date 2019/08/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We develop a self-consistent theory unifying the description of a quantum Fermi gas in the presence of a Fano-Feshbach resonance in the whole phase diagram ranging from BCS to BEC type of superfluidity and from narrow to broad resonances, including the fluctuations beyond mean field. Our theory covers a part of the phase diagram which is not easily accessible by Quantum Monte Carlo simulations and is becoming interesting for a new class of experiments in cold atoms.