The sign of the overlap of HFB wave functions

Abstract

The problem of how to compute accurately and efficiently the sign of the overlap between two general HFB wave functions is addressed. The results obtained can easily be extrapolated to the evaluation of the sign of the trace of a density operator exponential of one body operators.

5 pages, no figures

References in corpus (2)

• Configuration mixing of angular-momentum and particle-number projected triaxial HFB states using the Skyrme energy density functional
• Generalized Wick's theorem for multiquasiparticle overlaps as a limit of Gaudin's theorem