Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Perspectives on the quantum Zeno paradox

Published

Author(s)

Wayne M. Itano

Abstract

As of October 2006, there were approximately 535 citations to the seminal 1977 paper of Misra and Sudarshan which pointed out the quantum Zeno paradox (more often called the quantum Zeno effect). In simple terms, the quantum Zeno effect refers to a slowing down of the evolution of a quantum state in the limit that the state is observed continuously. There has been much disagreement as to how the quantum Zeno effect should be defined and as to whether it is really a paradox, requiring new physics, or merely a consequence of ?ordinary? quantum mechanics. The experiment of Itano, Heinzen, Bollinger, and Wineland, published in 1990. has been cited around 347 times and seems to be the one most often called a demonstration of the quantum Zeno effect. Given that there is disagreement as to what the quantum Zeno effect is, there naturally is disagreement as to whether that experiment demonstrated the quantum Zeno effect. Some differing perspectives regarding the quantum Zeno effect and what would constitute an experimental demonstration are discussed.
Proceedings Title
Proc. of the Sudarshan Symposium, Journal of Physics: Conference Series

Keywords

ion storage, Penning trap, quantum information, quantum measurement, quantum theory, quantum Zeno effect, quantum Zeno paradox

Citation

Itano, W. (2006), Perspectives on the quantum Zeno paradox, Proc. of the Sudarshan Symposium, Journal of Physics: Conference Series, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=50483 (Accessed June 15, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created November 7, 2006, Updated January 27, 2020