Project supported by the National Natural Science Foundation of China(Grant Nos.11274149 and 11304185);the Program of Shenyang Key Laboratory of Optoelectronic Materials and Technology,China(Grant No.F12-254-1-00)。
Bauer recently presented a formula for the ionization rate of a hydrogen atom in a strong linearly polarized laser field[J.Phys.B 49145601(2016)].He started from the Keldysh probability amplitude in the length gauge a...