supported by National Key Research and Development Program of China (Grant No. 2019YFA0308300);the National Natural Science Foundation of China (Grant Nos. 12021004 and 61475055)。
We theoretically study the photoelectron momentum distributions from multiphoton ionization of a model lithium atom over a range of laser wavelengths from 500 nm to 700 nm by numerically solving the time-dependent Sc...
Joshua B.Freeman is a distinguished Professor of History at Queens College and the Graduate Center of City University of New York.His main research interest is labor history,and his major books include American Empire...
Most of the female images described by Mary E.Wilkins Freeman live within the traditional female sphere,such as yards,kitchens,churches and so on.However,Freeman gave these traditional female spaces impressive anti-tr...