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Neutron interferometer crystallographic imperfections and gravitationally induced quantum interference measurements
dc.contributor.author | Heacock, Benjamin | |
dc.contributor.author | Arif, Muhammad | |
dc.contributor.author | Haun, Robert | |
dc.contributor.author | Huber, Michael G. | |
dc.contributor.author | Pushin, Dimitry A. | |
dc.contributor.author | Young, Albert R. | |
dc.date.accessioned | 2018-09-11 19:41:20 (GMT) | |
dc.date.available | 2018-09-11 19:41:20 (GMT) | |
dc.date.issued | 2017-01-25 | |
dc.identifier.uri | https://dx.doi.org/10.1103/physreva.95.013840 | |
dc.identifier.uri | http://hdl.handle.net/10012/13803 | |
dc.description | © 2017 American Physical Society, https://dx.doi.org/10.1103/physreva.95.013840 | en |
dc.description.abstract | Dynamical diffraction leads to an interesting, unavoidable set of interference effects for neutron interferometers. This experiment studies the interference signal from two and three successive Bragg diffractions in the Laue geometry. We find that intrinsic Bragg-planemisalignment in monolithic, "perfect" silicon neutron interferometers is relevant between successive diffracting crystals, as well as within the Borrmann fan for typical interferometer geometries. We show that the dynamical phase correction employed in the Colella, Overhauser, and Werner gravitationally induced quantum interference experiments is attenuated by slight, intrinsic misalignments between diffracting crystals, potentially explaining the long-standing 1% discrepancy between theory and experiment. This systematic may also impact precision measurements of the silicon structure factor, affecting previous and future measurements of the Debye-Waller factor and neutron-electron scattering length as well as potential fifth-force searches. For the interferometers used in this experiment, Bragg planes of different diffracting crystals were found to be misaligned by 10 to 40 nrad. | en |
dc.description.sponsorship | U.S. Department of Energy: DE-FG02-97ER41042 | en |
dc.description.sponsorship | National Science Foundation: PHY-1307426, PHY-1205342 | en |
dc.description.sponsorship | Canada Excellence Research Chairs, Government of Canada: 215284 | en |
dc.description.sponsorship | Natural Sciences and Engineering Research Council of Canada: RGPIN-418579 | en |
dc.language.iso | en | en |
dc.publisher | American Physical Society | en |
dc.subject | pendellosung fringe structure | en |
dc.subject | laue-rocking curves | en |
dc.subject | dynamical diffraction | en |
dc.subject | gravity | en |
dc.subject | silicon | en |
dc.title | Neutron interferometer crystallographic imperfections and gravitationally induced quantum interference measurements | en |
dc.type | Article | en |
dcterms.bibliographicCitation | Heacock, B., Arif, M., Haun, R., Huber, M. G., Pushin, D. A., & Young, A. R. (2017). Neutron interferometer crystallographic imperfections and gravitationally induced quantum interference measurements. Physical Review A, 95(1). doi:10.1103/physreva.95.013840 | en |
uws.contributor.affiliation1 | Faculty of Science | en |
uws.contributor.affiliation2 | Physics and Astronomy | en |
uws.typeOfResource | Text | en |
uws.typeOfResource | Reviewed | en |
uws.peerReviewStatus | Reviewed | en |
uws.scholarLevel | Faculty | en |