title: Coherence and resonance effects in the ultra-intense laser-induced ultrafast response of complex atoms.
abstract: Both coherent pumping and energy relaxation play important roles in understanding physical processes of ultra-intense coherent light-matter interactions. Here, using a large-scale quantum master equation approach, we describe dynamical processes of practical open quantum systems driven by both coherent and stochastic interactions. As examples, two typical cases of light-matter interactions are studied. First, we investigate coherent dynamics of inner-shell electrons of a neon gas irradiated by a high-intensity X-ray laser along with vast number of decaying channels. In these single-photon dominated processes, we find that, due to coherence-induced Rabi oscillations and power broadening effects, the photon absorptions of a neon gas can be suppressed resulting in differences in ionization processes and final ion-stage distributions. Second, we take helium as an example of multiphoton and multichannel interference dominated electron dynamics, by investigating the transient absorption of an isolated attosecond pulse in the presence of a femtosecond infrared laser pulse.
authors.affiliation: Department of Physics, College of Science, National University of Defense Technology, Changsha 410073, Hunan, P. R. China.
authors.forename: Yongqiang
authors.initials: Y
authors.lastname: Li
authors.affiliation: Department of Physics, College of Science, National University of Defense Technology, Changsha 410073, Hunan, P. R. China.
authors.forename: Cheng
authors.initials: C
authors.lastname: Gao
authors.affiliation: Department of Physics, College of Science, National University of Defense Technology, Changsha 410073, Hunan, P. R. China.
authors.forename: Wenpu
authors.initials: W
authors.lastname: Dong
authors.affiliation: Department of Physics, College of Science, National University of Defense Technology, Changsha 410073, Hunan, P. R. China.
authors.forename: Jiaolong
authors.initials: J
authors.lastname: Zeng
authors.affiliation: Department of Physics, College of Science, National University of Defense Technology, Changsha 410073, Hunan, P. R. China.
authors.forename: Zengxiu
authors.initials: Z
authors.lastname: Zhao
authors.affiliation: Department of Physics, College of Science, National University of Defense Technology, Changsha 410073, Hunan, P. R. China.|IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
authors.forename: Jianmin
authors.initials: J
authors.lastname: Yuan