Superpositions of time evolutions of a quantum system and a quantum time-translation machine

Yakir Aharonov, Jeeva Anandan, Sandu Popescu, and Lev Vaidman
Phys. Rev. Lett. 64, 2965 – Published 18 June 1990
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Abstract

A method to obtain a superposition of time evolutions of a quantum system which correspond to different Hamiltonians as well as to different periods of time is derived. Its application to amplification of an effect due to the action of weak forces is considered. A quantum time-translation machine based on the same principle, utilizing the gravitational field, is also considered.

  • Received 20 March 1989

DOI:https://doi.org/10.1103/PhysRevLett.64.2965

©1990 American Physical Society

Authors & Affiliations

Yakir Aharonov, Jeeva Anandan, Sandu Popescu, and Lev Vaidman

  • Department of Physics, University of South Carolina, Columbia, South Carolina 29208
  • School of Physics and Astronomy, Tel-Aviv University, Tel-Aviv 69978, Israel

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Issue

Vol. 64, Iss. 25 — 18 June 1990

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