With the development of superconducting technology,the superconducting magnet,which can produce a stable large gradient high magnetic field(LG-HMF)environment to make diamagnetic levitation,such as biological macromol...With the development of superconducting technology,the superconducting magnet,which can produce a stable large gradient high magnetic field(LG-HMF)environment to make diamagnetic levitation,such as biological macromolecules,cells,tissues and model animals,has become available.In this study,a superconducting magnet which can generate a magnetic force field[B·(dB/dz)]of-1360 T2/m,0 T2/m and 1312 T2/m in a 51 mm diameter room temperature bore was employed.展开更多
Single caesium atoms in a large-magnetic-gradient vapour-cell magneto-optical trap have been identified. The trapping of individual atoms is marked by the steps in fluorescence signal corresponding to the capture or l...Single caesium atoms in a large-magnetic-gradient vapour-cell magneto-optical trap have been identified. The trapping of individual atoms is marked by the steps in fluorescence signal corresponding to the capture or loss of single atoms. The typical magnetic gradient is about 29 mT/cm, which evidently reduces the capture rate of magneto-optical trap.展开更多
基金supported by National Natural Foundation of China(No.30670520)the National High-Tech R&D Program(863)of China(Key Program,2008AA12A220)
文摘With the development of superconducting technology,the superconducting magnet,which can produce a stable large gradient high magnetic field(LG-HMF)environment to make diamagnetic levitation,such as biological macromolecules,cells,tissues and model animals,has become available.In this study,a superconducting magnet which can generate a magnetic force field[B·(dB/dz)]of-1360 T2/m,0 T2/m and 1312 T2/m in a 51 mm diameter room temperature bore was employed.
基金Project supported by the National Natural Science Foundation of China (Grant Nos 60578018 and 10434080)the State Key Research Program of China (Grant No 2006CB921102)+2 种基金the Program for New Century Excellent Talents of the Education Ministry, China (Grant No NCET-07-0524)the Specialized Research Fund for the Doctoral Program of China (Grant No 20070108003)the Natural Science Foundation of Shanxi Province, China (Grant No 2007011003)
文摘Single caesium atoms in a large-magnetic-gradient vapour-cell magneto-optical trap have been identified. The trapping of individual atoms is marked by the steps in fluorescence signal corresponding to the capture or loss of single atoms. The typical magnetic gradient is about 29 mT/cm, which evidently reduces the capture rate of magneto-optical trap.
