期刊
PHYSICS LETTERS B
卷 734, 期 -, 页码 162-166出版社
ELSEVIER
DOI: 10.1016/j.physletb.2014.05.045
关键词
Hartree-Fock-Bogoliubov method; Beyond mean-field; Pfaffian; Two-body operator
资金
- National Natural Science Foundation of China [11175258, 11021504, 11275068]
We present new formulae for the matrix elements of one-body and two-body physical operators, which are applicable to arbitrary Hartree-Fock-Bogoliubov wave functions, including those for multiquasiparticle excitations. The testing calculations show that our formulae may substantially reduce the computational time by several orders of magnitude when applied to many-body quantum system in alarge Fock space. (C) 2014 The Authors. Published by Elsevier B. V.
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