27 citations · 136 across the 13 of their papers we have counts for
13 papers
Application of the variational principle to a coherent-pair condensate: The HFB case
L. Y. Jia
Recently we proposed a scheme that applies the variational principle to a coherent-pair condensate in the BCS case [Phys. Rev. C 99, 014302 (2019)]. This work extends the scheme to…
Variational Principle Directly on the Coherent Pair Condensate. I. the BCS Case
L. Y. Jia
We propose a scheme to perform the variational principle directly on the coherent pair condensate (VDPC). The result is equivalent to that of the so-called variation after particle…
Generalized Seniority on Deformed Single-Particle Basis
L. Y. Jia
Recently we proposed [62] a fast computing scheme for generalized seniority on spherical single-particle basis. This work redesigns the scheme to make it applicable to deformed sin…
Large-scale shell-model calculations on the spectroscopy of Pb isotopes
Chong Qi, L. Y. Jia, G. J. Fu
Large-scale shell-model calculations are carried out in the model space including neutron-hole orbitals , , , , and t…
Generalized-Seniority Pattern and Thermal Properties in Even Sn Isotopes
L. Y. Jia, Chong Qi
Even tin isotopes of mass number are calculated with realistic interactions in the generalized-seniority approximation of the nuclear shell model. For each nucle…
Particle-Hole Symmetry in Generalized Seniority, Microscopic Interacting Boson (Fermion) Model, Nucleon-Pair Approximation, and Others
L. Y. Jia
The particle-hole symmetry (equivalence) of the full shell-model Hilbert space is straightforward and routinely used in practical calculations. In this work we show that this symme…
Solving for the Particle-Number-Projected HFB Wavefunction
L. Y. Jia
Recently we proposed a particle-number-conserving theory for nuclear pairing [Jia, Phys. Rev. C 88, 044303 (2013)] through the generalized density matrix formalism. The relevant eq…
Accuracy of the new pairing theory and its improvement
L. Y. Jia
Recently I proposed a new method for solving the pairing Hamiltonian with the pair-condensate wavefunction ansatz based on the Heisenberg equations of motion for the density matrix…
Practical Calculation Scheme for Generalized Seniority
L. Y. Jia
We propose a scheme or procedure for doing practical calculations with generalized seniority. It reduces the total computing time by calculating and storing in advance a set of int…
Random Phase Approximation without Bogoliubov Quasi-particles
L. Y. Jia
A new version of random phase approximation is proposed for low-energy harmonic vibrations in nuclei. The theory is not based on the quasi-particle vacuum of the BCS/HFB ground sta…
A Number-Conserving Theory for Nuclear Pairing
L. Y. Jia
A microscopic theory for nuclear pairing is proposed through the generalized density matrix formalism. The analytical equations are as simple as that of the BCS theory, and could b…
Validity of the Generalized Density Matrix Method for Microscopic Calculation of Collective/Bosonic Hamiltonian
L. Y. Jia, V. G. Zelevinsky
Recently a procedure by generalized density matrix (GDM) is proposed for calculating a collective/bosonic Hamiltonian microscopically from the shell-model Hamiltonian. In this work…
Equivalent Representations of Collective Hamiltonian and Implication on Generalized Density Matrix Method
L. Y. Jia, V. G. Zelevinsky
We discuss equivalent representations of the collective/bosonic Hamiltonian in the form of Taylor expansion over collective coordinate and momentum. Different expansions are equiva…