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Scalar Aharonov-Bohm effect with longitudinally polarized neutrons

Allman, B. E. and Lee, W.-T. and Motrunich, O. I. and Werner, S. A. (1999) Scalar Aharonov-Bohm effect with longitudinally polarized neutrons. Physical Review A, 60 (6). pp. 4272-4284. ISSN 1050-2947. http://resolver.caltech.edu/CaltechAUTHORS:ALLpra99

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Abstract

In the scalar Aharonov-Bohm effect, a charged particle (electron) interacts with the scalar electrostatic potential U in the field-free (i.e., force-free) region inside an electrostatic cylinder (Faraday cage). Using a perfect single-crystal neutron interferometer we have performed a “dual” scalar Aharonov-Bohm experiment by subjecting polarized thermal neutrons to a pulsed magnetic field. The pulsed magnetic field was spatially uniform, precluding any force on the neutrons. Aligning the direction of the pulsed magnetic field to the neutron magnetic moment also rules out any classical torque acting to change the neutron polarization. The observed phase shift is purely quantum mechanical in origin. A detailed description of the experiment, performed at the University of Missouri Research Reactor, and its interpretation is given in this paper.


Item Type:Article
Additional Information:©1999 The American Physical Society Received 19 April 1999 This work was supported by the NSF Physics Division under Grant No. 9603559. B.E.A. acknowledges support from an Australian Research Council grant during the writing of this paper.
Record Number:CaltechAUTHORS:ALLpra99
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:ALLpra99
Alternative URL:http://dx.doi.org/10.1103/PhysRevA.60.4272
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:7138
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:09 Jan 2007
Last Modified:26 Dec 2012 09:29

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