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...
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...
supported by the National Basic Research Program of China(Grant No.2011CB921601);the National Natural Science Foundation of China(Grant Nos.10725416 and 60821004)
We experimentally study optical homodyne and heterodyne detections with the same setup, which is flexible to manipulate the signal sideband modulation. When the modulation only generates a single signal sideband, the ...
Project supported by the National Basic Research Program of China (Grant No. 2012CB921603);the National High Technology Research and Development of China (Grant No. 2009AA01Z319);the National Natural Science Foundation of China (Grant Nos.61008012,10934004,60978018,60978001,60808009, and 11074154);the Science Fund for Creative Research Groups of the National Natural Science Foundation of China (Grant No. 60821004);the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20101401120004);the National Natural Science Foundation of Shanxi Province,China (Grant No. 2009011059-2)
We propose a technique to precisely measure the line width of the photoassociation spectra of the excited cesium molecule by using a frequency shifter to generate two laser beams with a precise frequency difference. A...
supported by the National Basic Research Program of China (2010CB923103);the National Natural Science Foundation of China (10874106, 60821004 and 10904086)
Electromagnetically induced transparency (EIT) techniques are important tools for the storage of the quantum states of light fields in atomic ensembles and for enhancement of the interaction between photons. In this p...
supported by the 973 Program (Grant No. 2006CB921603);the 863 Program (Grant No. 2009AA01Z319);the National Natural Science Foundation of China (Grant Nos. 61008012, 11074154, 10934004, 60978018, 60978001, and 60808009);the National Natural Science Foundation of China for Excellent Research Team (Grant No. 60821004);the Natural Science Foundation of Shanxi Province of China (Grant No. 2009011059-2);the New Teacher Fund of the Ministry of Education of China (Grant No. 20101401120004)
We report on the observation of enhanced high-order partial wave scattering from atom atom interaction via changing the temperature of a magneto optical trap in the process of photoassociation. The high-order scatteri...
Project supported by the National Natural Science Foundation of China (Grant Nos. 10974126 and 60821004);the National Basic Research Program of China (Grant No. 2010CB923102)
The quantum noise of squeezed probe light passing through an atomic system with different electromagnetically induced transparency and AutlewTownes splitting effects is investigated theoretically. It is found that the...