The dynamic process of two-electron atom irradiated by intense laser pulse using time dependent quantum Monte Carlo method | Zendy

Fu-Ming Guo | Zendy; Yang Song | Zendy; Ji-Gen Chen | Zendy; Siliang Zeng | Zendy; Yujun Yang | Zendy

Open Access

The dynamic process of two-electron atom irradiated by intense laser pulse using time dependent quantum Monte Carlo method

Author(s) -

Fu-Ming Guo,

Yang Song,

Ji-Gen Chen,

Siliang Zeng,

Yujun Yang

Publication year - 2012

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.61.163203

Subject(s) - physics , wave packet , electron , monte carlo method , quantum monte carlo , time evolution , laser , atom (system on chip) , ionization , pulse (music) , atomic physics , computational physics , quantum mechanics , ion , computer science , statistics , mathematics , voltage , embedded system

We investigate the electron dynamic process of a one-dimensional two-electron atom irradiated by strong laser pulse using the improved time-dependent quantum Monte Carlo (TDQMC) scheme. By comparison with the scheme for solving the time-dependent Schrdinger equation by using the accurate numerical integration, the dynamic variation of particle in a quantum ensemble, corresponding to the calculated wave-packet, is consistent with the evolution of time-dependent wavepacket. The computation efficiency of the TDQMC is more largely enhanced than that of the time-dependent integration method. According to the dynamic evolution behaviors of the calculated classical particle ensemble, we analyze the excitation, ionization, recombination of electron and other non-linear processes in a strong laser field.

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