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Atoms 2016, 4(1), 11; doi:10.3390/atoms4010011

Fundamental Features of Quantum Dynamics Studied in Matter-Wave Interferometry—Spin Weak Values and the Quantum Cheshire-Cat

Atominstitut, TU Wien, Stadionallee 2, 1020 Vienna, Austria
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Academic Editors: A. Kumarakrishnan and Dallin S. Durfee
Received: 28 January 2016 / Revised: 3 March 2016 / Accepted: 8 March 2016 / Published: 11 March 2016
(This article belongs to the Special Issue Atom Interferometry)
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Abstract

The validity of quantum-mechanical predictions has been confirmed with a high degree of accuracy in a wide range of experiments. Although the statistics of the outcomes of a measuring apparatus have been studied intensively, little has been explored and is known regarding the accessibility of quantum dynamics. For these sorts of fundamental studies of quantum mechanics, interferometry using neutron matter-waves in particular, provides almost ideal experimental circumstances. In this device quantum interference between spatially separated beams occurs on a macroscopic scale. Recently, the full determination of weak-values of neutrons 1 2 - spin adds a new aspect to the study of quantum dynamics. Moreover, a new counter-intuitive phenomenon, called quantum Cheshire Cat, is observed in an interference experiment. In this article, we present an overview of these experiments. View Full-Text
Keywords: quantum; neutron; interferometry; spin; weak-values; 03.65.Ta; 03.75.Dg; 42.50.Xa; 07.60.Ly quantum; neutron; interferometry; spin; weak-values; 03.65.Ta; 03.75.Dg; 42.50.Xa; 07.60.Ly
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MDPI and ACS Style

Sponar, S.; Denkmayr, T.; Geppert, H.; Hasegawa, Y. Fundamental Features of Quantum Dynamics Studied in Matter-Wave Interferometry—Spin Weak Values and the Quantum Cheshire-Cat. Atoms 2016, 4, 11.

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