‘‘Comment on ‘A study of barrier penetration in quantum mechanics’ by J. D. Chalk’’

Hrvoje Nikolić

Yue Liu

Formula for penetration coefficient in barrier penetration when ∪0-E is presented, and the question in the article 《The reserch on barrier of quantum mechanics from a piece of exercise》(《College Physics》 1993, 12(10)) is explained using this formula.

Yujun Zheng

Quantum tunneling is a very important quantum phenomenon in quantum mechanics.The question of one-dimensio na l barrier penetration is studied in this paper.Three different forms ofthe res u lts,namely,differences of the energy of the particle,EV0,EV0 and E=V0,can be unified by employing effective barrier.Some physical phe n omena about one-dimensional barrier penetration are discussed in the extreme co nditions.

John J. Stachel

Liping Peng

The barrier penetration in the case of E=U0 has not been discussed in the current textbook of quantum mechanics.It's unreasonable to make a substitution of EU0(or EU0) for E=U0 priviously.In this paper,the penetration coefficient for the case of E=U0 is directly obtained with the help of two distinct methods.

M. Aoki