报告时间：2017年12月15日10:00-11:00
报告地点：近代物理系210会议室
报告人：张芃教授（中国人民大学）
报告题目：Center of Mass Momentum Dependent Interaction Between Ultracold Atoms
报告摘要：We show that a new type of two-body interaction, which depends on the momentum of the center of mass (CoM) of these two particles, can be realized in ultracold atom gases with a laser-modulated magnetic Feshbach resonance (MFR). Here the MFR is modulated by two laser beams propagating along different directions, which can induce Raman transition between two-body bound states. The Doppler effect causes the two-atom scattering length to be strongly dependent on the CoM momentum of these two atoms. As a result, the effective two-atom interaction is CoM-momentum dependent, while the one-atom free Hamiltonian is still the simple kinetic energy p2/(2m).
张芃教授简介：http://www.phys.ruc.edu.cn/contents/25/51.html