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Extension of time-dependent Hartree-Fock-Bogoliubov equations

Abstract : An extension of the time-dependent Hartree-Fock-Bogoliubov theory (ETDHFB) which includes higher-order effects such as screening of the pairing correlation is proposed. ETDHFB is applied to a pairing model and a fermion system trapped in a harmonic potential to test its feasibility by comparison with exact solutions. With the use of perturbative expressions for the pairing tensor and the two-body density matrix derived from ETDHFB, the screening effect is investigated for atomic fermion systems and isotopes of tin nuclei. It is found that the screening effect on the pairing correlation is not significant.
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Contributor : Sophie Heurteau <>
Submitted on : Wednesday, April 8, 2015 - 3:05:13 PM
Last modification on : Friday, April 30, 2021 - 10:22:32 AM

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M. Tohyama, P. Schuck. Extension of time-dependent Hartree-Fock-Bogoliubov equations. Physical Review Online Archive (PROLA), American Physical Society, 2015, 91 (3), pp.034316. ⟨10.1103/PhysRevC.91.034316⟩. ⟨in2p3-01140404⟩



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