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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