Welcome to Qiang (Alan) Ye's homepage!

      I am a post doc in Prof. Haiyan Gao's Medium Energy Group in the department of Physics of Duke University. My research field is experimental medium energy physics, which includes two major projects. The first one is the search for neutron electric dipole moment (nEDM) experiment to be carried out at the Spallation Neutron Source (SNS) of the Oak Ridge National Laboratory (ORNL). The possible existence of nEDM is of great fundamental interest and directly impacts our understanding of the nature of Electroweak and strong interactions. It is also a direct search of the time reversal symmetry (T) violation, which is a unique way of search for CP (charge conjugation C and parity P) violation due to CPT invariance. This proposed experiment has the potential of lowering the current experimental upper limit by 2 orders of magnitude.

      The second project is Compton scattering experiment on polarized ³He and three-body photodisintegration of polarized ³He using the High Intensity Gamma Source (HIGS) at the Duke Free Electron Laser Laboratory (DFELL). Low energy Compton scattering experiments on polarized ³He can help probe the neutron's polarizabilities, a set of fundamental quantities describing the response of the nucleon to external electromagnetic fields. The target can also be used for stringent tests of three-body calculations including effective field theory calculations in the future.