2010/03/31 by L. O. Baksmaty, Hong Lu, C. J. Bolech +1 · 2 citations
Chemistry · Mathematics · Physics and Astronomy · #Atomic and Subatomic Physics Research #Chemistry #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Electron #Fermi Gamma-ray Space Telescope #Fermi gas #Geometry #Mathematics #Metastability #Pairing #Parameter space #Physics #Polarization (electrochemistry) #Quantum mechanics #Quantum, superfluid, helium dynamics #Space (punctuation) #Superconductivity #Superfluidity #Unitary state #cond-mat.quant-gas #cond-mat.supr-con #nucl-th
paper · pdf · doi:10.1103/physreva.83.023604
published as Phys. Rev. A 83, 023604 (2011)
openalex publication_date 2011/02/08 · arxiv created 2011/02/28 · arxiv updated 2011/03/09 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Recent ground-breaking experiments studying the effects of spin polarization on pairing in unitary Fermi gases encountered mutual qualitative and quantitative discrepancies which seem to be a function of the confining geometry. Using numerical algorithms we study the solution space for a three-dimensional fully self-consistent formulation of realistic systems with up to 105 atoms. A study of the three types of solutions obtained demonstrates a tendency toward metastability as the confining geometry is elongated. One of these solutions, which is consistent with Rice experiments at high trap aspect ratio, supports a state strikingly similar to the long sought Fulde-Ferrel-Larkin-Ovchinnikov state. Our study helps to resolve the long-standing controversy concerning the discrepancies between the findings from two different experimental groups and highlights the versatility of actual-size numerical calculations for investigating inhomogeneous fermionic superfluids.