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(第一三三期) Some applications of the dynamic polarizabilities of magnesium and of the neutron Prof. James F. Babb Institute of Theoretical Atomic, Molecular and Optical Physics, Harvard-Smithsonian Center for Astrophysics, USA 2015年11月17日(周二) 下午3:00-4:30 频标楼4楼报告厅 About the Speaker: James F. Babb is a senior scientific staff of the Institute for the Theoretical Atomic, Molecular and Optical Physics (ITAMP) at the Harvard-Smithsonian Center for Astrophysics. He graduated with PhD degree from the New York University, USA, then He received ITAMP postdoctoral Fellow. Current research interest: Spectroscopy and scattering in atomic and molecular physics for applications to astrophysics, light science, and ultra-low temperature collisions; Calculations of long-range forces between pairs of atoms, and between atoms and conducting walls; Quantum electro dynamical studies of energy shifts arising from two transverse photon exchange leading to experimental verification by measurements on Rydberg states of helium; Theories of effects beyond the BornOppenheimer approximation and their manifestations, such as in the hyperfine structure of the hydrogen molecular ions. Abstract: Polarizabilities of atoms and molecules have many important applications in atomic and molecular physics, such as in ac/dc Stark shifts, uncertainty evaluation for an optical clock due to black body radiation, atomic interferometer, and construction of an effective potential for a Rydberg atom. In this talk, Dr James F. Babb will discuss the dynamic polarizabilities of the magnesium atom and of the neutron, how the polarizabilities are modeled, how the polarizabilities are obtained quantitatively, and some applications. 主办单位:武汉物数所理论与交叉研究部