2015/09/30 by Brendan Bulthuis, Alexandros Gezerlis · 13 citations
Mathematics · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Hamiltonian (control theory) #Mathematics #Neutron #Nuclear physics research studies #Pairing #Physics #Quantum mechanics #Quantum, superfluid, helium dynamics #Random phase approximation #Singlet state #Spin (aerodynamics) #Superconductivity #Thermodynamics #cond-mat.supr-con #nucl-th
paper · pdf · doi:10.1103/physrevc.93.014312
published in Physical Review C 93(1) (American Institute of Physics) · 10 pages, 7 figures, 2 tables; v2 corresponds to the published version
openalex publication_date 2016/01/20 · arxiv created 2016/01/25 · arxiv updated 2016/01/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The nature of the nuclear pairing condensate is an active topic of investigation, especially as regards its neutron-proton versus identical-particle character, which manifests as the difference between spin-singlet and spin-triplet pairing. In this work, we probe the recently proposed mixed-spin pairing condensates, using a phenomenological Hamiltonian and Hartree-Fock-Bogoliubov theory along with the gradient method. In addition to improving the solution of the many-body problem, we have calculated a series of physical quantities and examined the robustness of the mixed-spin pairing state as the input Hamiltonian is modified. Overall, we find that even though the mixed-spin correlation energy is suppressed in comparison to earlier work, the new pairing behavior persists. We also discuss the possibility of directly probing the mixed-spin pairing phase.