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

Journal of Physics A Mathematical and General

Direct verification of the quantum spin-state superposition law

G. Badurek, H. Rauch, Johann Summhammer, U. Kischko, Anton Zeilinger

Published Apr 21, 1983• 10 citations
Publisher

Abstract

Coherent superposition of two neutron waves, with mutually opposite polarisation direction, is used to demonstrate the quantum-mechanical properties of spin-state superposition for fermions.
DOI
10.1088/0305-4470/16/6/008

Related papers

A proposal for an additional verification of the spin-state superposition law

Mirjana Božić

Physics Letters A•May 1, 1986•0 citations

Explicit experimental verification of quantum spin-state superposition

Johann Summhammer, G. Badurek, H. Rauch +1 more

Physics Letters A•Jun 1, 1982•42 citations

NEUTRON INTERFEROMETRY AND ITS RELATION TO FUNDAMENTAL PHYSICS

H. Rauch

Various fundamental laws of quantum mechanics have been tested by neutron interferometry, where widely separated coherent matter waves can be influenced separately. The explicite verification of the 4π symmetry of spinor wave functions, of the static and time dependent spin superposition law and of various coherence phenomena of matter waves are characteristical examples.

Le Journal de Physique Colloques•Mar 1, 1984•4 citations

A quantum potential approach to spin superposition in neutron interferometry

Christopher Dewdney, Peter Holland, Anastasios Kyprianidis

Physics Letters A•Apr 1, 1987•24 citations

Direct observation of fermion spin superposition by neutron interferometry

Johann Summhammer, G. Badurek, H. Rauch +2 more

The coherent superposition of oppositely polarized neutron beams of equal amplitude results in a final beam polarization perpendicular to the polarization of both initial beams. This polarization can be rotated by purely scalar interaction applied to the beams before superposition, which is equivalent to an additional Larmor precession applied to the beam after superposition. We have directly observed these effects in an experiment performed using the perfect-crystal neutron interferometer at the high-flux reactor at Grenoble. This paper gives the experimental results and discusses their theoretical foundation.

Physical Review A•May 1, 1983•137 citations

Verification of coherent spinor rotation of fermions

H. Rauch, Anton Zeilinger, G. Badurek +3 more

Physics Letters A•Oct 1, 1975•351 citations
The coherent superposition of oppositely polarized neutron beams of equal amplitude results in a final beam polarization perpendicular to the polarization of both initial beams. This polarization can be rotated by purely scalar interaction applied to the beams before superposition, which is equivalent to an additional Larmor precession applied to the beam after superposition. We have directly observed these effects in an experiment performed using the perfect-crystal neutron interferometer at the high-flux reactor at Grenoble. This paper gives the experimental results and discusses their theoretical foundation.