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

Physical Review A

Spectral filtering in neutron interferometry and wave-corpuscle dualism

Vito Luigi Lepore

Published Jul 1, 1993• 4 citations
Publisher

Abstract

In the following we discuss a recent experiment [H. Kaiser et al., Phys. Rev. A 45, 31 (1992)] on spectral filtering regarding its relevance to the wave-corpuscle dualism. An interpretation of the experiment is given, with the assumption, according to de Broglie, that a neutron is a real corpuscle traveling in space-time and surrounded by a guiding wave.

DOI
10.1103/physreva.48.111

Related papers

Restoration of neutron interferometer contrast by post-interference filtering

J. W. G. Wignall

It is argued that the results of a recent neutron interference experiment [Kaiser et al., Phys. Rev. A 45, 31 (1992)], in which contrast lost as a result of difference in effective path lengths is restored by wavelength filtering after recombination, cannot be construed as evidence against the notion that a neutron is a physically real wave packet.

Physical Review A•Feb 1, 1993•1 citation

Spectral filtering in neutron interferometry

S. A. Werner, R. Clothier, Helmut Kaiser +2 more

We have demonstrated experimentally that the contrast lost, due to placing slabs of a material having a neutron optical potential in one leg of a neutron interferometer, can be restored by spectral filtering of the beams leaving the interferometer immediately before detection. The non-Gaussian spectral distribution of the neutrons traversing the interferometer in our experiment leads to an unexpected phase reversal of the interferograms.

Physical Review Letters•Aug 5, 1991•33 citations

Testing wave-particle dualism with time-dependent neutron interferometry

Christopher Dewdney, Ph. Gueret, Anastasios Kyprianidis +1 more

Physics Letters A•May 1, 1984•30 citations

Coherence and spectral filtering in neutron interferometry

Helmut Kaiser, R. Clothier, S. A. Werner +2 more

The coherence length of a neutron wave packet depends on the spectral width of the distribution of wave vectors that make up the packet. The coherent overlap of the wave packets traversing the two beam paths in a perfect-silicon-crystal neutron interferometer (NI) is altered by placing a material with a neutron-nuclear optical potential in one of the beam paths in the NI. If the optical potential is positive, it causes a delay of the wave packet and a loss of fringe visibility. By use of an analyzer crystal, we narrow the spectral distribution after the mixing and interference has occurred in the last crystal slab of the NI. This increases the coherence length and restores some of the fringe visibility.

Physical Review A•Jan 1, 1992•65 citations

Interpretation of a Recent Experiment on Interference of Photon Beams

Louis de Broglie, J. Andrade E Silva

The interpretation of an important recent experiment by Pfleegor and Mandel according to the causal formulation of the wave-particle dualism is developed. This interpretation is simpler and seems more satisfactory than that provided by the current ideas on the nature of light.

Physical Review•Aug 25, 1968•49 citations

Time-dependent neutron interferometry: Evidence in favour of de Broglie waves

Christopher Dewdney, A. Kypeianidis, Jean Pierre Vigier +2 more

Lettere al nuovo cimento della societa italiana di fisica/Lettere al nuovo cimento•Aug 1, 1984•5 citations
In the following we discuss a recent experiment [H. Kaiser et al., Phys. Rev. A 45, 31 (1992)] on spectral filtering regarding its relevance to the wave-corpuscle dualism. An interpretation of the experiment is given, with the assumption, according to de Broglie, that a neutron is a real corpuscle traveling in space-time and surrounded by a guiding wave.
The coherence length of a neutron wave packet depends on the spectral width of the distribution of wave vectors that make up the packet. The coherent overlap of the wave packets traversing the two beam paths in a perfect-silicon-crystal neutron interferometer (NI) is altered by placing a material with a neutron-nuclear optical potential in one of the beam paths in the NI. If the optical potential is positive, it causes a delay of the wave packet and a loss of fringe visibility. By use of an analyzer crystal, we narrow the spectral distribution after the mixing and interference has occurred in the last crystal slab of the NI. This increases the coherence length and restores some of the fringe visibility.