Physics Letters A 223, 241-245 (1996).




RESONANCE ENERGY-EXCHANGE-FREE DETECTION AND `WELCHER WEG' EXPERIMENT


Mladen Pavicic


Max-Planck-AG Nichtklassische Strahlung, Humboldt University of Berlin, D-12484 Berlin, Germany.

Department of Mathematics, University of Zagreb, GF, Kaciceva 26, POB-217, HR-10001 Zagreb, Croatia; mpavicic@faust.irb.hr; http://m3k.grad.hr/pavicic

Abstract. It is shown that a monolithic total-internal-reflection resonator can be used for energy-exchange-free detections of objects without recoils. Related energy-exchange-free detection of `welcher Weg' is discussed and an experiment with an atom interferometer is proposed. The obtained results are in agreement with quantum theory.

PACS numbers: 03.65.Bz, 42.25.Hz, 07.60.Ly, 42.50.Vk

Keywords: interaction-free interference fringes erasure, "Welcher Weg" experiment, uncertainty relation non-applicability, back-action-free experiment