3 papers
physics.optics2020
Exceptional points in a topological photonic system
Junhua Dong, Chang-Yin Ji, Qingmei Hu +2
Exceptional points as branch singularities describe peculiar degeneracies of non-Hermitian systems that do not obey energy conservation. This work shows that exceptional points can…
nucl-th2013
Matrix elements of one-body and two-body operators between arbitrary HFB multi-quasiparticle states
Qing-Li Hu, Zao-Chun Gao, Y. S. Chen
We present new formulae for the matrix elements of one-body and two-body physical operators in compact forms, which are applicable to arbitrary Hartree-Fock-Bogoliubov wave functio…
nucl-th2013
A convenient implementation of the overlap between arbitrary Hartree-Fock-Bogoliubov vacua for projection
Zao-Chun Gao, Qing-Li Hu, Y. S. Chen
Overlap between Hartree-Fock-Bogoliubov(HFB) vacua is very important in the beyond mean-field calculations. However, in the HFB transformation, the matrices are sometimes sin…