Evolution of an atom impeded by measurement: The quantum Zeno effect

Authors
Wunderlich, C Balzer, C Toschek, PE
Citation
C. Wunderlich et al., Evolution of an atom impeded by measurement: The quantum Zeno effect, Z NATURFO A, 56(1-2), 2001, pp. 160-164
Citations number
21
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES
ISSN journal
09320784 → ACNP
Volume
56
Issue
1-2
Year of publication
2001
Pages
160 - 164
Database
ISI
SICI code
0932-0784(200101/02)56:1-2<160:EOAAIB>2.0.ZU;2-Z
Abstract
A quantum system being observed evolves more slowly. This "quantum Zeno eff ect" is reviewed with respect to a previous attempt of demonstration, and t o subsequent criticism of the significance of the findings. A recent experi ment on an individual cold trapped ion has been capable of revealing the mi cro-state of this quantum system, such that the effect of measurement is in deed discriminated from dephasing of the quantum state by either the meter or the environment.