20 citations · 50 across the 5 of their papers we have counts for
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Geometric phase for nonlinear coherent and squeezed state
Da-Bao Yang, Ying Chen, Fu-Lin Zhang +1
The geometric phases for standard coherent states which are widely used in quantum optics have attracted a large amount of attention. Nevertheless, few physicists consider about th…
Super fidelity and related metric
Zhi-Hao Ma, Fu-Lin Zhang, Zhi-Hua Chen +1
We report a new metric of quantum states. This metric is build up from super-fidelity, which has deep connection with the Uhlmann-Jozsa fidelity and plays an important role in quan…
Geometric interpretation for A-fidelity and its relation with Bures fidelity
Zhihao Ma, Fu-Lin Zhang, Jing-Ling Chen
A geometric interpretation for the A-fidelity between two states of a qubit system is presented, which leads to an upper bound of the Bures fidelity. The metrics defined based on t…
Dynamical symmetries of the Klein-Gordon equation
Fu-Lin Zhang, Jing-Ling Chen
The dynamical symmetries of the two-dimensional Klein-Gordon equations with equal scalar and vector potentials (ESVP) are studied. The dynamical symmetries are considered in the pl…
Dynamical symmetries of two-dimensional systems in relativistic quantum mechanics
Fu-Lin Zhang, Ci Song, Jing-Ling Chen
The two-dimensional Dirac Hamiltonian with equal scalar and vector potentials has been proved commuting with the deformed orbital angular momentum . When the potential takes the…