Evolution of an atom impeded by measurement

Author

Balzer, C. ; Hannemann, T. ; Wunderlich, C. ; Neuhauser, W. ; Toschek, P.E.

Author_Institution

Inst. fur Laser-Phys., Hamburg, Germany

fYear

2000

fDate

10-15 Sept. 2000

Abstract

Summary form only given. The temporal evolution of a quantum system is retarded by repeated measurements of the observable involved in the evolution. This impediment, the "quantum Zeno effect", has been proven indistinguishable from the effect of dephasing the system\´s wave function, except in an individual quantum system. We have demonstrated the retardation of the light-driven quantum evolution on the line S/sub 1/2/-D/sub 6/2/ of a single cooled /sup 172/Yb ion placed in the node of the electric field of a 2-mm Paul trap.

Keywords

eigenvalues and eigenfunctions; laser cooling; particle traps; probability; quantum optics; ytterbium; 2 mm; Paul trap; S/sub 1/2/-D/sub 6/2/ line; Yb; dephasing; electric field; individual quantum system; light-driven quantum evolution; observable; quantum Zeno effect; quantum system; repeated measurements; single cooled /sup 172/Yb ion; temporal evolution; wave function; Atomic measurements; Bandwidth; Computer hacking; Frequency conversion; Geometry; Impedance; Interference; Interferometry; Quantum entanglement; Quantum mechanics;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics Conference, 2000. Conference Digest. 2000 International

Conference_Location

Nice, France

Print_ISBN

0-7803-6318-3

Type

conf

DOI

10.1109/IQEC.2000.908081

Filename

908081