Atoms and cavities:: Explorations of quantum entanglement

被引:0
作者
Raimond, JM [1 ]
Hagley, E [1 ]
Maître, X [1 ]
Nogues, G [1 ]
Wunderlich, C [1 ]
Brune, M [1 ]
Haroche, S [1 ]
机构
[1] Ecole Normale Super, Lab Kastler Brossel, Dept Phys, CNRS, F-75231 Paris, France
来源
ATOMIC PHYSICS 16: SIXTEENTH INTERNATIONAL CONFERENCE ON ATOMIC PHYSICS | 1999年 / 477卷
关键词
D O I
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中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
The interaction of circular Rydberg atoms with a high-quality microwave cavity makes it possible to realize complex quantum state manipulations. The state of an atom can be "copied" onto the cavity. Reversing this operation at a later time with a second atom, we realize an elementary "quantum memory" holding an atomic quantum coherence for a while in a cavity mode. We have also generated two-atom entangled states of the Einstein-Podolsky-Rosen type. At variance with previous experiments, this one implies massive particles in a completely controlled process. These entanglement manipulations can be generalized to more complex or to mesoscopic systems and open the way to new tests of fundamental aspects of the quantum world.
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页码:209 / 222
页数:14
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