Verification of coherent spinor rotation of fermions

Rauch, H.; Zeilinger, Anton; Badurek, G.; Wilfing, A.; Bauspiess, W.; Bonse, U.

doi:10.1016/0375-9601(75)90798-7

Cited by 329 publications

(173 citation statements)

References 5 publications

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“…Only an interference experiment with a reference beam can reveal it. Neutron interferometry made it possible to create exactly such an experiment, and the obtained results agree well with theoretical predictions [11,12]. There are other approaches to access the 4π-symmetry with neutrons using Fresnel diffraction at ferromagnetic domains [13] or RF flippers [14].…”

Section: Neutron Interferometer Experiments In Historysupporting

confidence: 59%

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

Sponar

Denkmayr

Geppert

et al. 2016

Atoms

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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.

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Section: Neutron Interferometer Experiments In Historysupporting

confidence: 59%

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

Sponar

Denkmayr

Geppert

et al. 2016

Atoms

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“…It is an experiment in neutron interferometry performed by Helmut Rauch and his collaborators. The preparation of the experiment was published in [1], while the actual experiment, as presented here, was performed a year later and the results were published in [2]. Rauch has also written a 'review article' on the numerous neutron experiments that have since been performed [3].…”

Section: Magic With Neutronsmentioning

confidence: 99%

“…We cannot go into all details in this paper and refer the reader to [1,2,3,4,5,6] for extensive analyses of Rauch's experiment. Meanwhile, more than two decades later, experimentators play in the laboratory with quantum entities brought very explicitly in non-local states .…”

Section: Magic With Neutronsmentioning

confidence: 99%

The Stuff the World is Made of: Physics and Reality

Aerts¹

1999

Einstein Meets Magritte: An Interdisciplinary Reflection

137

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Taking into account the results that we have been obtained during the last decade in the foundations of quantum mechanic we put forward a view on reality that we call the 'creation discovery view'. In this view it is made explicit that a measurement is an act of a macroscopic physical entity on a microphysical entity that entails the creation of new elements of reality as well as the detection of existing elements of reality. Within this view most of the quantum mechanical paradoxes are due to structural shortcomings of the standard quantum theory, which means that our analysis agrees with the claim made in the Einstein Podolsky Rosen paper, namely that standards quantum mechanics is an incomplete theory. This incompleteness is however not due to the absence of hidden variables but to the impossibility for standard quantum mechanics to describe separated quantum entities. Nonlocality appears as a genuine property of nature in our view and makes it necessary to reconsider the role of space in reality. Our proposal for a new interpretation for space makes it possible to put forward an new hypothesis for why it has not been possible to unify quantum mechanics and relativity theory.Absolute space, in its own nature, without relation to anything external, remains always similar and immovable. Absolute, true, and mathematical time, of itself, and from its own nature, flows equally without relation to anything external.Isaac Newton, 1642 -1726. * Published as: Aerts, D., 1999, "The stuff the world is made of: physics and reality", in Einstein meets Magritte: an interdisciplinary reflection, eds. Aerts, D., Broekaert, J. and Mathijs, E., Kluwer Academic, Dordrecht.

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“…The related experiments have been done nearly simultaneously by our group [12] and by a U.S. one [13] and demonstrated this basic feature (Fig. 4).…”

Section: Spinor Symmetry: Neutrons In a Magnetic Fieldmentioning

confidence: 64%

“…10 in comparison with calculated values [36] Fig. 12 Experimental set-up to measure geometric phases with ultra-cold neutrons by means of a spin-echo method to balance the dynamical phase [39] less sensitive to any fluctuation of external parameters [38]. A related experiment with bottled ultra-cold neutrons has been performed recently [39] (Fig.…”

Section: φ(T ) = Arg ψ(T )|ψ(0)mentioning

confidence: 98%

Neutron Matter Wave Quantum Optics

Rauch

2011

Found Phys

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Neutron matter-wave optics provides the basis for new quantum experiments and a step towards applications of quantum phenomena. Most experiments have been performed with a perfect crystal neutron interferometer where widely separated coherent beams can be manipulated individually. Various geometric phases have been measured and their robustness against fluctuation effects has been proven, which may become a useful property for advanced quantum communication. Quantum contextuality for single particle systems shows that quantum correlations are to some extent more demanding than classical ones. In this case entanglement between external and internal degrees of freedom offers new insights into basic laws of quantum physics. Non-contextuality hidden variable theories can be rejected by arguments based on the Kochen-Specker theorem.

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Verification of coherent spinor rotation of fermions

Cited by 329 publications

References 5 publications

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

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

The Stuff the World is Made of: Physics and Reality

Neutron Matter Wave Quantum Optics

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