Quantum Time Translation Machine
Dieter Suter, Matthias Ernst, Richard R. Ernst · Technische Universität Dortmund Eldorado (Technische Universität Dortmund) · 1993
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.