Quantum memory with a single photon in a cavity

被引:262
作者
Maitre, X
Hagley, E
Nogues, G
Wunderlich, C
Goy, P
Brune, M
Raimond, JM
Haroche, S
机构
[1] Laboratoire Kastler Brossel, Département de Physique de l’Ecole Normale Supérieure, Paris, F-75231, 24 rue Lhomond
关键词
D O I
10.1103/PhysRevLett.79.769
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The quantum information carried by a two-level atom was transferred to a high-e cavity and, after a delay, to another atom. We realized in this way a quantum memory made of a field in a superposition of 0 and 1 photon Fock states. We measured the ''holding time'' of this memory corresponding to the decay of the field intensity or amplitude at the single photon level. This experiment implements a step essential for quantum information processing operations.
引用
收藏
页码:769 / 772
页数:4
相关论文
共 23 条
[1]   CONDITIONAL QUANTUM DYNAMICS AND LOGIC GATES [J].
BARENCO, A ;
DEUTSCH, D ;
EKERT, A ;
JOZSA, R .
PHYSICAL REVIEW LETTERS, 1995, 74 (20) :4083-4086
[2]  
Berman P. R., 1994, CAVITY QUANTUM ELECT
[3]   Observing the progressive decoherence of the ''meter'' in a quantum measurement [J].
Brune, M ;
Hagley, E ;
Dreyer, J ;
Maitre, X ;
Maali, A ;
Wunderlich, C ;
Raimond, JM ;
Haroche, S .
PHYSICAL REVIEW LETTERS, 1996, 77 (24) :4887-4890
[4]   Quantum rabi oscillation: A direct test of field quantization in a cavity [J].
Brune, M ;
Schmidt-Kaler, F ;
Maali, A ;
Dreyer, J ;
Hagley, E ;
Raimond, JM ;
Haroche, S .
PHYSICAL REVIEW LETTERS, 1996, 76 (11) :1800-1803
[5]   FROM LAMB SHIFT TO LIGHT SHIFTS - VACUUM AND SUBPHOTON CAVITY FIELDS MEASURED BY ATOMIC PHASE-SENSITIVE DETECTION [J].
BRUNE, M ;
NUSSENZVEIG, P ;
SCHMIDT-KALER, F ;
BERNARDOT, F ;
MAALI, A ;
RAIMOND, JM ;
HAROCHE, S .
PHYSICAL REVIEW LETTERS, 1994, 72 (21) :3339-3342
[6]   QUANTUM COMPUTATIONS WITH COLD TRAPPED IONS [J].
CIRAC, JI ;
ZOLLER, P .
PHYSICAL REVIEW LETTERS, 1995, 74 (20) :4091-4094
[7]  
CIRAC JI, 1996, ADV ATOM MOL PHYS, V37, P238
[8]   QUANTUM COMPUTATION [J].
DIVINCENZO, DP .
SCIENCE, 1995, 270 (5234) :255-261
[9]   SIMPLE CAVITY-QED 2-BIT UNIVERSAL QUANTUM LOGIC GATE - THE PRINCIPLE AND EXPECTED PERFORMANCES [J].
DOMOKOS, P ;
RAIMOND, JM ;
BRUNE, M ;
HAROCHE, S .
PHYSICAL REVIEW A, 1995, 52 (05) :3554-3559
[10]  
EKERT A, 1997, REV MOD PHYS, V68, P3733