Quantum anti-Zeno paradox

被引:33
作者
Balachandran, AP [1 ]
Roy, SM
机构
[1] Syracuse Univ, Dept Phys, Syracuse, NY 13244 USA
[2] Tata Inst Fundamental Res, Dept Theoret Phys, Mumbai 400005, India
关键词
D O I
10.1103/PhysRevLett.84.4019
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We establish an exact differential equation for the operator describing time-dependent measurements continuous in time and obtain a series solution. Suppose the projection operator E(t) = U(t)EU+(t) is measured continuously from t = 0 to T, where E is a projector leaving the initial state unchanged and L(t) a unitary operator obeying U(0) = 1. We prove that the probability of always finding E(t) = 1 from t = 0 to T is unity. If U(t) not equal 1, the watched kettle is sure to "boil.".
引用
收藏
页码:4019 / 4022
页数:4
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