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Now showing items 1-16 of 16

    • Decoupling of a neutron interferometer from temperature gradients 

      Saggu, Parminder; Mineeva, Taisiya; Arif, Muhammad; Cory, David G.; Haun, Robert; Heacock, Benjamin; Huber, Michael G.; Li, Ke; Nsofini, Joachim; Sarenac, Dusan; Shahi, Chandra B.; Skavysh, Vladimir; Snow, W. Michael; Werner, Samuel A.; Young, Albert R.; Pushin, Dimitry A. (AIP Publishing, 2016-12-16)
      Neutron interferometry enables precision measurements that are typically operated within elaborate, multi-layered facilities which provide substantial shielding from environmental noise. These facilities are necessary to ...
    • Experimental search for long-range forces in neutron scattering via a gravitational spectrometer 

      Serebrov, Anatoli P.; Geltenbort, Peter; Zherebtsov, O. M.; Sbitnev, S. V.; Varlamov, V. E.; Vassiljev, A. V.; Lasakov, M. S.; Krasnoschekova, I. A.; Ivanov, S. N.; Pushin, Dimitry A. (American Physical Society, 2014-04-09)
      In this work we introduce a method of measuring low-energy scattering cross section with a gravitational spectrometer. In this method we add atoms (i.e., He) to the gravitational spectrometer filled with a target gas of ...
    • Far-field interference of a neutron white beam and the applications to noninvasive phase-contrast imaging 

      Pushin, Dimitry A.; Sarenac, Dusan; Hussey, Daniel S.; Miao, Haixing; Arif, Muhammad; Cory, David G.; Huber, Michael G.; Jacobson, David L.; LaManna, Jacob M.; Parker, Joseph D.; Shinohara, Takenao; Ueno, Wataru; Wen, Han (American Physical Society, 2017-04-26)
      The phenomenon of interference plays a crucial role in the field of precision measurement science. Waveparticle duality has expanded the well-known interference effects of electromagnetic waves to massive particles. The ...
    • Holography with a neutron interferometer 

      Sarenac, Dusan; Huber, Michael G.; Heacock, Benjamin; Arif, Muhammad; Clark, Charles W.; Cory, David G.; Shahi, Chandra B.; Pushin, Dimitry A. (The Optical Society, 2016-10-03)
      We use a Mach-Zehnder interferometer to perform neutron holography of a spiral phase plate. The object beam passes through a spiral phase plate, acquiring the phase twist characteristic of orbital angular momentum states. ...
    • Increased interference fringe visibility from the post-fabrication heat treatment of a perfect crystal silicon neutron interferometer 

      Heacock, Benjamin; Arif, Muhammad; Cory, David G.; Gnaeupel-Herold, Thomas; Haun, Robert; Huber, Michael G.; Jamer, Michelle E.; Nsofini, Joachim; Pushin, Dimitry A.; Sarenac, Dusan; Taminiau, Ivan; Young, Albert R. (AIP Publishing, 2018-02-08)
      We find that annealing a previously chemically etched interferometer at 800 degrees C dramatically increased the interference fringe visibility from 23% to 90%. The Bragg plane misalignments were also measured before and ...
    • Neutron interferometer crystallographic imperfections and gravitationally induced quantum interference measurements 

      Heacock, Benjamin; Arif, Muhammad; Haun, Robert; Huber, Michael G.; Pushin, Dimitry A.; Young, Albert R. (American Physical Society, 2017-01-25)
      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 ...
    • Neutron interferometric measurement of the scattering length difference between the triplet and singlet states of n-He-3 

      Huber, Michael G.; Arif, Muhammad; Chen, Wangchun C.; Gentile, Thomas R.; Hussey, Daniel S.; Black, Timothy C.; Pushin, Dimitry A.; Shahi, Chandra B.; Wietfeldt, Fred E.; Yang, Liang (American Physical Society, 2014-12-15)
      We report a determination of the n-He-3 scattering length difference = b = = b = 1 -b = 0 = [-5.411 = 0.031 (statistical) = 0.039 (systematic)] fm between the triplet and singlet states using a neutron interferometer. This ...
    • Neutron Interferometry at the National Institute of Standards and Technology 

      Pushin, Dimitry A.; Huber, Michael G.; Arif, Muhammad; Shahi, Chandra B.; Nsofini, Joachim; Wood, Christopher J.; Sarenac, Dusan; Cory, David G. (Hindawi, 2015)
      Neutron interferometry has proved to be a very precise technique for measuring the quantum mechanical phase of a neutron caused by a potential energy difference between two spatially separated neutron paths inside ...
    • Neutron limit on the strongly-coupled chameleon field 

      Li, Ke; Arif, Muhammad; Cory, David G.; Haun, Robert; Heacock, Benjamin; Huber, Michael G.; Nsofini, Joachim; Pushin, Dimitry A.; Saggu, Parminder; Sarenac, Dusan; Shahi, Chandra B.; Skavysh, Vladimir; Snow, W. Michael; Young, Albert R. (American Physical Society, 2016-03-11)
      The physical origin of the dark energy that causes the accelerated expansion rate of the Universe is one of the major open questions of cosmology. One set of theories postulates the existence of a self-interacting scalar ...
    • Noise refocusing in a five-blade neutron interferometer 

      Nsofini, Joachim; Sarenac, Dusan; Ghofrani, Kamyar; Huber, Michael G.; Arif, Muhammad; Cory, David G.; Pushin, Dimitry A. (AIP Publishing, 2017-08-07)
      We provide a quantum information description of a proposed five-blade neutron interferometer geometry and show that it is robust against low-frequency mechanical vibrations and dephasing due to the dynamical phase. The ...
    • The PROSPECT reactor antineutrino experiment 

      Ashenfelter, J.; Balantekin, A. B.; Baldenegro, C.; Band, H. R.; Bass, C. D.; Bergeron, D. E.; Berish, D.; Bignell, L. J.; Bowden, N. S.; Boyle, J.; Bricco, J.; Brodsky, J. P.; Bryan, C. D.; Bykadorova Telles, A.; Cherwinka, J. J.; Classen, T.; Commeford, K.; Conant, A.; Cox, A. A.; Davee, D.; Dean, D.; Deichert, G.; Diwan, M. V.; Dolinski, M. J.; Erickson, A.; Febbraro, M.; Foust, B. T.; Gaison, J. K.; Galindo-Uribarri, A.; Gilbert, C.; Gilje, K.; Glenn, A.; Goddard, B. W.; Hackett, B.; Han, K.; Hans, S.; Hansell, A. B.; Heeger, K. M.; Heffron, B.; Insler, J.; Jaffe, D. E.; Ji, X.; Jones, D. C.; Koehler, K.; Kyzylova, O.; Lane, C. E.; Langford, T. J.; LaRosa, J.; Littlejohn, B. R.; Lopez, F.; Lu, X.; Martinez Caicedo, D. A.; Matta, J. T.; McKeown, R. D.; Mendenhall, M.; Miller, H. J.; Minock, J.; Mueller, P. E.; Mumm, H. P.; Napolitano, J.; Neilson, R.; Nikkel, J. A.; Norcini, D.; Nour, S.; Pushin, Dimitry A.; Qian, X.; Romero-Romero, E.; Rosero, R.; Sarenac, Dusan; Seilhan, B.; Sharma, R.; Surukuchi, P. T.; Trinh, C.; Tyra, M. A.; Varner, R. L.; Viren, B.; Wagner, J. M.; Wang, W.; White, B.; White, C.; Wilhelmi, J.; Wise, T.; Yao, H.; Yeh, M.; Yen, Y.-R.; Zhang, A.; Zhang, C.; Zhang, X.; Zhao, M. (Elsevier, 2019-04-01)
      The Precision Reactor Oscillation and Spectrum Experiment, PROSPECT, is designed to make both a precise measurement of the antineutrino spectrum from a highly-enriched uranium reactor and to probe eV-scale sterile neutrinos ...
    • Quantum correlations in a noisy neutron interferometer 

      Wood, Christopher J.; Abutaleb, Mohamed O.; Huber, Michael G.; Arif, Muhammad; Cory, David G.; Pushin, Dimitry A. (American Physical Society, 2014-09-15)
      We investigate quantum coherences in the presence of noise by entangling the spin and path degrees of freedom of the output neutron beam from a noisy three-blade perfect crystal neutron interferometer. We find that in the ...
    • Quantum-information approach to dynamical diffraction theory 

      Nsofini, Joachim; Ghofrani, Kamyar; Sarenac, Dusan; Cory, David G.; Pushin, Dimitry A. (American Physical Society, 2016-12-08)
      We present a simplified model for dynamical diffraction of particles through a periodic thick perfect crystal based on repeated application of a coherent beam-splitting unitary at coarse-grained lattice sites. By demanding ...
    • A sensitive search for dark energy through chameleon scalar fields using neutron interferometry 

      Snow, W. Michael; Arif, Muhammad; Heacock, Benjamin; Huber, Michael G.; Li, Ke; Pushin, Dimitry A.; Skavysh, Vladimir; Young, Albert R. (IOP Publishing, 2015-01-22)
      The physical origin of the dark energy, which is postulated to cause the accelerated expansion rate of the universe, is one of the major open questions of cosmology. A large subset of theories postulate the existence of a ...
    • Spin-orbit states of neutron wave packets 

      Nsofini, Joachim; Sarenac, Dusan; Wood, Christopher J.; Cory, David G.; Arif, Muhammad; Clark, Charles W.; Huber, Michael G.; Pushin, Dimitry A. (American Physical Society, 2016-07-13)
      We propose amethod to prepare an entangled spin-orbit state between the spin and the orbital angular momenta of a neutron wave packet. This spin-orbit state is created by passing neutrons through the center of a quadrupole ...
    • Three Phase-Grating Moire Neutron Interferometer for Large Interferometer Area Applications 

      Sarenac, Dusan; Pushin, Dimitry A.; Huber, Michael G.; Hussey, Daniel S.; Miao, Haixing; Arif, Muhammad; Cory, David G.; Cronin, Alex D.; Heacock, Benjamin; Jacobson, David L.; LaManna, Jacob M.; Wen, Han (American Physical Society, 2018-03-12)
      We demonstrate a three phase-grating moire neutron interferometer in a highly intense neutron beam as a robust candidate for large area interferometry applications and for the characterization of materials. This novel ...

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