30 citations · 212 across the 33 of their papers we have counts for
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Renormalization for singular-potential scattering
Wen-Du Li, Wu-Sheng Dai
In the calculation of quantum-mechanical singular-potential scattering, one encounters divergence. We suggest three renormalization schemes, dimensional renormalization, analytic c…
Scattering state and bound state of scalar field in Schwarzschild spacetime: Exact solution
Wen-Du Li, Yu-Zhu Chen, Wu-Sheng Dai
The main aim of this paper is twofold. (1) Exact solutions of a scalar field in the Schwarzschild spacetime are presented. The exact wave functions of scattering states and bound-s…
Why the entropy of spacetime is independent of species of particles -- the species problem
Yu-Zhu Chen, Wen-Du Li, Wu-Sheng Dai
The Hawking radiation emits all species of particles, but the Bekenstein-Hawking entropy is independent of the number of the species of particles. This is the so-called species pro…
Exact solution of inverse-square-root potential
Wen-Du Li, Wu-Sheng Dai
An exact solution of the three-dimensional spherical symmetry inverse-square-root potential , including scattering and bound-state solutions, i…
Covariant perturbation expansion of off-diagonal heat kernel
Yu-Zi Gou, Wen-Du Li, Ping Zhang +1
Covariant perturbation expansion is an important method in quantum field theory. In this paper an expansion up to arbitrary order for off-diagonal heat kernels in flat space based…