Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:quant-ph/9502004 · Physical Review A

There is no classical analog of a quantum time-translation machine

Lev Vaidman A

Published Nov 1, 1995• 0 citations
arXivHTMLPDF

Abstract

In a recent article [D. Suter, Phys. Rev. A 51, 45 (1995)] Suter has claimed to present an optical implementation of the quantum time-translation machine that ``shows all the features that the general concept predicts and also allows, besides the quantum-mechanical, a classical description.'' It is argued that the experiment proposed and performed by Suter does not have the features of the quantum time-translation machine and that the latter has no classical analog.

DOI
10.1103/physreva.52.4297

Related papers

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

Aharonov, Y, Anandan, J, Sandu Popescu +1 more

•Jan 1, 1990•0 citations

‘‘Weak measurements’’ and the ‘‘quantum time-translation machine’’ in a classical system

Dieter Suter

A simple optical experiment is discussed that implements the ``quantum time-translation machine'' suggested by Aharonov et al. [Phys. Rev. Lett. 64, 2965 (1990)] for photons. The time-translation effect was observed experimentally as the shift of the fringe pattern in a modified Mach-Zehnder interferometer. The possibility of describing the effect classically, in terms of Maxwell's equations, suggests an alternative interpretation that does not invoke time-translation effects.

Physical Review A•Jan 1, 1995•18 citations

THE QUANTUM-MECHANICAL INTERPRETATION OF TIME

Syed Arif Kamal

If time is substituted in the equation of motion in the Heisenberg picture the results obtained may lead to confusions if the equations are not interpreted correctly. Some examples are given.

•Jan 1, 2000•0 citations

Quantum time-translation machine

Dieter Suter, Matthias Ernst, Richard R. Ernst

We report for the first time an experimental realization of a ‘quantum time-translation machine’ via superpositions of time evolutions as suggested by Aharonov, Anandan, Popescu and Vaidman (1990, Phys. Rev. Lett., 64, 2965). The physical system consists of two coupled spins 1/2 and the amplification scheme is applied to the heteronuclear coupling between the two spins. We give a simple explanation of the phenomenon and suggest possible classical analogues.

Molecular Physics•Jan 1, 1993•32 citations

A Classical View of Quantum Time Crystals

Georg Engelhardt

Numerical studies indicate that certain types of time crystals might be described using classical physics-a result that could vastly simplify the theoretical description of these systems.

Physics•Sep 27, 2021•2 citations

Coherent Ising machines—optical neural networks operating at the quantum limit

Y. Yamamoto, Kazuyuki Aihara, Timothee G. Leleu +5 more

Abstract In this article, we will introduce the basic concept and the quantum feature of a novel computing system, coherent Ising machines, and describe their theoretical and experimental performance. We start with the discussion how to construct such physical devices as the quantum analog of classical neuron and synapse, and end with the performance comparison against various classical neural networks implemented in CPU and supercomputers.

npj Quantum Information•Dec 11, 2017•256 citations
In a recent article [D. Suter, Phys. Rev. A 51, 45 (1995)] Suter has claimed to present an optical implementation of the quantum time-translation machine that ``shows all the features that the general concept predicts and also allows, besides the quantum-mechanical, a classical description.'' It is argued that the experiment proposed and performed by Suter does not have the features of the quantum time-translation machine and that the latter has no classical analog.