6533b7dcfe1ef96bd127166b
RESEARCH PRODUCT
Hartree-Fock-Bogoliubov theory of polarized Fermi systems
Jacek Jan DobaczewskiJacek DobaczewskiGeorge F. BertschWitold NazarewiczWitold NazarewiczWitold NazarewiczJunchen PeiJunchen Peisubject
Condensed Matter::Quantum GasesPhysicsNuclear TheoryCondensed Matter - SuperconductivityNuclear TheoryHartree–Fock methodFOS: Physical sciencesAtomic and Molecular Physics and OpticsSuperconductivity (cond-mat.supr-con)Nuclear Theory (nucl-th)SuperfluidityQuantum mechanicsQuantum electrodynamicsAtomic nucleusQuasiparticleParity (mathematics)Nuclear theoryFermi Gamma-ray Space Telescopedescription
Condensed Fermi systems with an odd number of particles can be described by means of polarizing external fields having a time-odd character. We illustrate how this works for Fermi gases and atomic nuclei treated by density functional theory or Hartree-Fock-Bogoliubov (HFB) theory. We discuss the method based on introducing two chemical potentials for different superfluid components, whereby one may change the particle-number parity of the underlying quasiparticle vacuum. Formally, this method is a variant of non-collective cranking, and the procedure is equivalent to the so-called blocking. We present and exemplify relations between the two-chemical-potential method and the cranking approximation for Fermi gases and nuclei.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2008-08-13 | Physical Review A |