172 citations · 2.2k across the 119 of their papers we have counts for
13 papers · 1 filter
Exact solution of the two-axis two-spin Hamiltonian
Feng Pan, Yao-Zhong Zhang, Xiaohan Qi +3
Bethe ansatz solution of the two-axis two-spin Hamiltonian is derived based on the Jordan-Schwinger boson realization of the SU(2) algebra. It is shown that the solution of the Bet…
Exact solution of the two-axis countertwisting Hamiltonian for the half-integer case
Feng Pan, Yao-Zhong Zhang, Jerry P. Draayer
Bethe ansatz solutions of the two-axis countertwisting Hamiltonian for any (integer and half-integer) are derived based on the Jordan-Schwinger (differential) boson realization…
Exact solution of the two-axis countertwisting Hamiltonian
Feng Pan, Yao-Zhong Zhang, Jerry P. Draayer
It is shown that the two-axis countertwisting Hamiltonian is exactly solvable when the quantum number of the total angular momentum of the system is an integer after the Jordan-Sch…
Quasi-exactly solvable cases of the N-dimensional symmetric quartic anharmonic oscillator
Feng Pan, Ming-Xia Xie, Chang-Liang Shi +2
The O(N) invariant quartic anharmonic oscillator is shown to be exactly solvable if the interaction parameter satisfies special conditions. The problem is directly related to that…
The extended Heine-Stieltjes polynomials associated with a special LMG model
Feng Pan, Lina Bao, Liyuan Zhai +2
New polynomials associated with a special Lipkin-Meshkov-Glick (LMG) model corresponding to the standard two-site Bose-Hubbard model are derived based on the Stieltjes corresponden…
A progressive diagonalization scheme for the Rabi Hamiltonian
Feng Pan, Xin Guan, Yin Wang +1
A diagonalization scheme for the Rabi Hamiltonian, which describes a qubit interacting with a single-mode radiation field via a dipole interaction, is proposed. It is shown that th…