Project supported by the National Basic Research Program of China(Grant No.2010CB923103);the National Natural Science Foundation of China(Grant Nos.11475109,11274211,and 60821004)
We report an experimental study of electromagnetically induced transparency(EIT)-based light storage in a cloud of cold atoms loaded into a magneto-optical-trap(MOT). After the MOT is turned off, the retrieval eff...
the National Basic Research Program of China (2010CB923103);the National Natural Science Foundation of China (11475109, 11274211 and 60821004)
We report an experimental generation of polarization-entangled photon pairs in a cold atomic ensemble. A single Stokes photon and one spin-wave excitation are simultaneously created via spontaneous Raman scattering. T...
supported by the National Basic Research Program of China(Grant Nos.2012CB921603 and 2010CB923103);the International Science &Technology Cooperation Program of China(Grant No.2011DFA12490);the National Natural Science Foundation of China(Grant Nos.11304189,61378015,and 61275209);the Project for Excellent Research Team of the National Natural Science Foundation of China(Grant No.61121064);the Program for Changjiang Scholars,China,and the Innovative Research Team in University,China(Grant No.IRT13076)
We systematically investigate the polarization gradient cooling (PGC) process in an optical molasses of ultracold cesium atoms. The SR mode for changing the cooling laser, which means that the cooling laser frequenc...
supported by the National Basic Research Program of China(Grant No.2010CB923103);the National Natural Science Foundation of China(Grant Nos.11322440,11074157,11174188 and 61121064);OIT and Shanxi Scholarship Council of China(Grant No.2012-010)
The preparation of multipartite entangled states is the prerequisite for exploring quantum information networks and quantum computation.In this paper,we review the experimental progress in the preparation of cluster s...
supported by the National Basic Research Program of China(2010CB923103);the National Natural Science Foundation of China(11174188,61121064);Shanxi Scholarship Council of China(2012-010);Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi
In this paper, we theoretically prove that the Gaussian quantum discord state of optical field can be used to complete continuous variable(CV) quantum key distribution(QKD). The calculation shows that secret key can b...