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求是理学论坛--物理学系5月11日张芃学术报告的通知(Physics Department colloquium)

编辑:phydpy 时间:2017年05月09日 访问次数:343

题目:Center of Mass Momentum Dependent Interaction Between Ultracold Atoms

报告人:张芃 中国人民大学

地点: 教十二-201

时间: 511日,周四,15:00-16:00

 

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).

 

个人简介:

教育经历:

Sep. 1995Jul. 1999 Department of Physics, Beijing Normal University, Bachelor of Science

Sep. 1999Mar. 2005 Institute of Theoretical Physics, CASP. H. D. Advised by Prof. Changpu, Sun.

工作经历:

May. 2004 Jun. 2004 School of Physics, The University of Hong Kong Visiting Student. Collaborate with Prof. Z.D.Wang

Apr. 2005 Spt. 2007 School of Physics, Georgia Institute of Technology Postdoctoral Fellow. Collaborate with Prof. Li You

Oct. 2007Sep. 2010 UEDA Macroscopic Quantum Control Project, Postdoctoral Fellow. Collaborate with Prof. M.Ueda.

Oct. 2010-now: professor in physics department, Renmin University of China.

研究兴趣:

 a) Few-body problems in ultracold atom physics.

 b) Quantum optics.

 

欢迎老师和同学参加!