From the quantum zeno to the inverse quantum zeno effect

被引:281
作者
Facchi, P
Nakazato, H
Pascazio, S
机构
[1] Ossterreich Univ, Atominst, A-1020 Vienna, Austria
[2] Waseda Univ, Dept Phys, Tokyo 1698555, Japan
[3] Univ Bari, Dipartimento Fis, I-70126 Bari, Italy
[4] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy
关键词
D O I
10.1103/PhysRevLett.86.2699
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The temporal evolution of an unstable quantum mechanical system undergoing repeated measurements is investigated. In general, by changing the time interval between successive measurements, the decay can be accelerated (inverse quantum Zeno effect) or slowed down (quantum Zeno effect), depending on the features of the interaction Hamiltonian. A geometric criterion is proposed for a transition to occur between these two regimes.
引用
收藏
页码:2699 / 2703
页数:5
相关论文
共 40 条
[1]   On the absence of the Zeno effect in relativistic quantum field theory [J].
Alvarez-Estrada, RF ;
Sánchez-Gómez, JL .
PHYSICS LETTERS A, 1999, 253 (5-6) :252-258
[2]   Projection postulate and atomic quantum Zeno effect [J].
Beige, A ;
Hegerfeldt, GC .
PHYSICAL REVIEW A, 1996, 53 (01) :53-65
[3]   SHORT-TIME BEHAVIOR OF UNSTABLE SYSTEMS IN-FIELD THEORY AND PROTON DECAY [J].
BERNARDINI, C ;
MAIANI, L ;
TESTA, M .
PHYSICAL REVIEW LETTERS, 1993, 71 (17) :2687-2690
[4]  
BESKOW A, 1967, ARK FYS, V34, P561
[5]   WHAT ARE QUANTUM JUMPS [J].
COOK, RJ .
PHYSICA SCRIPTA, 1988, T21 :49-51
[6]   Temporal behavior and quantum Zeno time of an excited state of the hydrogen atom [J].
Facchi, P ;
Pascazio, S .
PHYSICS LETTERS A, 1998, 241 (03) :139-144
[7]   Deviations from exponential law and Van Hove's "λ2t" limit [J].
Facchi, P ;
Pascazio, S .
PHYSICA A, 1999, 271 (1-2) :133-146
[8]   Spontaneous emission and lifetime modification caused by an intense electromagnetic field [J].
Facchi, P ;
Pascazio, S .
PHYSICAL REVIEW A, 2000, 62 (02) :14
[9]   Quantum Zeno and inverse quantum Zeno effects [J].
Facchi, Paolo ;
Pascazio, Saverio .
PROGRESS IN OPTICS, VOL 42, 2001, 42 :147-217
[10]   TREATMENT OF THE SPECTRUM OF SQUEEZING BASED ON THE MODES OF THE UNIVERSE .2. APPLICATIONS [J].
GEABANACLOCHE, J ;
LU, N ;
PEDROTTI, LM ;
PRASAD, S ;
SCULLY, MO ;
WODKIEWICZ, K .
PHYSICAL REVIEW A, 1990, 41 (01) :381-387