QUANTUM ZENO EFFECT

被引:78
作者
PETROSKY, T [1 ]
TASAKI, S [1 ]
PRIGOGINE, I [1 ]
机构
[1] INT SOLVAY INST PHYS & CHEM,B-1050 BRUSSELS,BELGIUM
来源
PHYSICA A | 1991年 / 170卷 / 02期
关键词
D O I
10.1016/0378-4371(91)90048-H
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In 1977, Misra and Sudarshan showed, based on the quantum measurement theory, that an unstable particle will never be found to decay when it is continuously observed. They called it the quantum Zeno effect (or paradox). More generally the quantum Zeno effect is associated to the inhibition of transitions by frequent measurements. This possibility has attracted much interest over the last years. Recently, Itano, Heinzen, Bollinger and Wineland have reported that they succeeded in observing the quantum Zeno effect. This would indeed be an important step towards the understanding of the role of the observer in quantum mechanics. However, in the present paper, we will show that their results can be recovered through conventional quantum mechanics and do not involve a repeated reduction (or collapse) of the wave function.
引用
收藏
页码:306 / 325
页数:20
相关论文
共 12 条
[1]   WHAT ARE QUANTUM JUMPS [J].
COOK, RJ .
PHYSICA SCRIPTA, 1988, T21 :49-51
[2]  
Exner P., 1985, OPEN QUANTUM SYSTEMS
[3]   ON THE PERTURBATION OF CONTINUOUS SPECTRA [J].
FRIEDRICHS, KO .
COMMUNICATIONS ON APPLIED MATHEMATICS, 1948, 1 (04) :361-406
[4]   QUANTUM ZENO EFFECT [J].
ITANO, WM ;
HEINZEN, DJ ;
BOLLINGER, JJ ;
WINELAND, DJ .
PHYSICAL REVIEW A, 1990, 41 (05) :2295-2300
[5]   SMALL TIME BEHAVIOR OF AN UNSTABLE QUANTUM SYSTEM [J].
LEVITAN, J .
PHYSICS LETTERS A, 1988, 129 (5-6) :267-272
[6]  
LOUISELL WH, 1973, QUANTUM STATISTICAL
[7]  
MISRA B, 1977, J MATH PHYS, V18, P756, DOI 10.1063/1.523304
[8]  
PETROSKY T, 1990, IN PRESS CAN J PHYS, V68
[9]  
PETROSKY T, IN PRESS
[10]  
Prigogine I., 1980, BEING BECOMING