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A scalar Aharonov-Bohm experiment with neutrons

Technical Report:

Abstract

The scalar version of the Aharonov-Bohm effect predicts a phase shift for de Broglie waves due to the action of a scalar potential in an otherwise field-free (i.e. force-free) region of space. Unlike the more familiar effect due to the magnetic vector potential, the scalar effect has hitherto remained unverified due, presumably, to technical difficulties in electron interferometry. Rather than using electrons acted on by electrostatic potentials, an analogous interferometry experiment was performed with thermal neutrons subject to pulsed magnetic fields. The observations were carried out at the Missouri University Research Reactor, using a skew-symmetric perfect silicon crystal neutron interferometer. The expected phase shifts have been observed to a high degree of accuracy. 7 refs., 4 figs.
Authors:
Allman, B E; Cimmino, A; Opat, G I; [1]  Kaiser, H; Werner, S A [2] 
  1. Melbourne Univ., Parkville (Australia). School of Physics
  2. Missouri Univ., Columbia, MO (United States). Dept. of Physics and Astronomy
Publication Date:
Dec 31, 1992
Product Type:
Technical Report
Report Number:
UM-P-91/98
Reference Number:
SCA: 663610; PA: AIX-24:003927; SN: 93000914000
Resource Relation:
Other Information: PBD: [1992]
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; INTERFEROMETRY; THERMAL NEUTRONS; PHASE SHIFT; DE BROGLIE WAVELENGTH; EXPERIMENTAL DATA; MAGNETIC FIELDS; SCALARS; 663610; NEUTRON PHYSICS
Sponsoring Organizations:
Australian Research Council, Canberra, ACT (Australia)
OSTI ID:
10109227
Research Organizations:
Melbourne Univ., Parkville, VIC (Australia). School of Physics
Country of Origin:
Australia
Language:
English
Other Identifying Numbers:
Other: ON: DE93610134; CNN: Grant NSF-PHY-9024608; TRN: AU9212920003927
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
[13] p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Allman, B E, Cimmino, A, Opat, G I, Kaiser, H, and Werner, S A. A scalar Aharonov-Bohm experiment with neutrons. Australia: N. p., 1992. Web.
Allman, B E, Cimmino, A, Opat, G I, Kaiser, H, & Werner, S A. A scalar Aharonov-Bohm experiment with neutrons. Australia.
Allman, B E, Cimmino, A, Opat, G I, Kaiser, H, and Werner, S A. 1992. "A scalar Aharonov-Bohm experiment with neutrons." Australia.
@misc{etde_10109227,
title = {A scalar Aharonov-Bohm experiment with neutrons}
author = {Allman, B E, Cimmino, A, Opat, G I, Kaiser, H, and Werner, S A}
abstractNote = {The scalar version of the Aharonov-Bohm effect predicts a phase shift for de Broglie waves due to the action of a scalar potential in an otherwise field-free (i.e. force-free) region of space. Unlike the more familiar effect due to the magnetic vector potential, the scalar effect has hitherto remained unverified due, presumably, to technical difficulties in electron interferometry. Rather than using electrons acted on by electrostatic potentials, an analogous interferometry experiment was performed with thermal neutrons subject to pulsed magnetic fields. The observations were carried out at the Missouri University Research Reactor, using a skew-symmetric perfect silicon crystal neutron interferometer. The expected phase shifts have been observed to a high degree of accuracy. 7 refs., 4 figs.}
place = {Australia}
year = {1992}
month = {Dec}
}