2007/01/17 by Y. Alhassid
Chemistry · Mathematics · Physics and Astronomy · #Advanced Chemical Physics Studies #Advanced Physical and Chemical Molecular Interactions #Condensed matter physics #Mathematics #Mean field theory #Monte Carlo method #Nanoparticle #Pairing #Parity (physics) #Physics #Quantum mechanics #Statistical physics #Statistics #Superconductivity #Theoretical and Computational Physics #Thermal #Thermodynamics #cond-mat.supr-con #nucl-th
paper · pdf · doi:10.1016/j.nuclphysa.2007.01.065
published as Nucl.Phys.A788:357-365,2007 · 9 pages, 3 figures; to appear in the Proceedings of the Second International Conference on Collective Motion in Nuclei Under Extreme Conditions (COMEX2)
openalex publication_date 2007/01/17 · arxiv created 2007/02/15 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The Bardeen-Cooper-Schrieffer (BCS) mean-field theory of the pairing interaction breaks down for nuclei and ultra-small metallic grains (nanoparticles). Finite-temperature pairing correlations in such finite-size systems can be calculated beyond the BCS theory in an auxiliary-field Monte Carlo approach. We identify thermal signatures of pairing correlations in both nuclei and nanoparticles that depend on the particle-number parity.