Simple computer model for the quantum Zeno effect

Details Simple computer model for the quantum Zeno effect Simple computer model for the quantum Zeno effect

2000-04-03

arxiv.org/abs/quant-ph/0004011v2

Physical Review A 63 (2001), 022019

Physics

Quantum Physics

REVTeX; 12 pages including 11 figures; figures reformatted to be more readable; some small changes made to the description of

Scientific paper

10.1103/PhysRevA.63.022109

This paper presents a simple model for repeated measurement of a quantum system: the evolution of a free particle, simulated by discretising the particle's position. This model is easily simulated by computer and provides a useful arena to investigate the effects of measurement upon dynamics, in particular the slowing of evolution due to measurement (the `quantum Zeno effect'). The results of this simulation are discussed for two rather different sorts of measurement process, both of which are (simplified forms of) measurements used in previous simulations of position measurement. A number of interesting results due to measurement are found, and the investigation casts some light on previous disagreements about the presence or absence of the Zeno effect.

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