Quantum control by compensation of quantum fluctuations

被引:11
作者
Hofmann, HF
Hess, O
Mahler, G
机构
[1] DLR, Inst Tech Phys, D-70569 Stuttgart, Germany
[2] Inst Theoret Phys & Synerget, D-70550 Stuttgart, Germany
来源
OPTICS EXPRESS | 1998年 / 2卷 / 09期
关键词
D O I
10.1364/OE.2.000339
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We show that the influence of quantum fluctuations in the electromagnetic field vacuum on a two level atom can be measured and consequently compensated by balanced homodyne detection and a coherent feedback field. This compensation suppresses the decoherence associated with spontaneous emissions for a specific state of the atomic system allowing complete control of the coherent state of the system. (C) 1997 Optical Society of America.
引用
收藏
页码:339 / 346
页数:8
相关论文
共 13 条
[1]   HOW THE RESULT OF A MEASUREMENT OF A COMPONENT OF THE SPIN OF A SPIN-1/2 PARTICLE CAN TURN OUT TO BE 100 [J].
AHARONOV, Y ;
ALBERT, DZ ;
VAIDMAN, L .
PHYSICAL REVIEW LETTERS, 1988, 60 (14) :1351-1354
[2]   HOMODYNE STATISTICS [J].
BRAUNSTEIN, SL .
PHYSICAL REVIEW A, 1990, 42 (01) :474-481
[3]  
Carmichael H., 1993, OPEN SYSTEMS APPROAC
[4]  
CARMICHAEL HJ, 1996, COHERENCE QUANTUM OP, V7, P177
[5]  
Gardiner C., 2010, Quantum Noise
[6]   MEASUREMENT MODELS FOR TIME-RESOLVED SPECTROSCOPY - A COMMENT [J].
HOFMANN, HF ;
MAHLER, G .
QUANTUM AND SEMICLASSICAL OPTICS, 1995, 7 (04) :489-497
[7]  
HOFMANN HF, 1998, IN PRESS PHYS REV A, V57
[8]   Generalized measurements in eight-port homodyne detection [J].
Luis, A ;
Perina, J .
QUANTUM AND SEMICLASSICAL OPTICS, 1996, 8 (04) :873-886
[9]   Quantum error correction in the presence of spontaneous emission [J].
Plenio, MB ;
Vedral, V ;
Knight, PL .
PHYSICAL REVIEW A, 1997, 55 (01) :67-71
[10]   REVERSIBILITY IN QUANTUM MEASUREMENT PROCESSES [J].
UEDA, M ;
KITAGAWA, M .
PHYSICAL REVIEW LETTERS, 1992, 68 (23) :3424-3427