Noise Refocusing in a Five-blade Neutron Interferometer

Published

August 1, 2017

Author(s)

Michael G. Huber, Muhammad D. Arif, Dimitry A. Pushin, David G. Cory, Dusan Sarenac, Joachim Nsofini, Kamyar Ghofrani

Abstract

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 extent to which the dynamical phase affects the contrast in a neutron interferometer is experimentally shown. In our model, we consider the coherent evolution of a neutron wavepacket in an interferometer crystal blade and simulate the effect of mechanical vibrations and momentum spread of the neutron through the interferometer. The standard three-blade neutron interferometer is shown to be immune to dynamical phase noise but prone to noise from mechanical vibrations, and the decoherence free subspace four-blade neutron interferometer is shown to be immune to mechanical vibration noise but prone to noise from the dynamical phase. Here, we propose a five-blade neutron interferometer and show that it is immune to both low-frequency mechanical vibration noise and dynamical phase noise.

Citation

Journal of Applied Physics

Volume

122

Pub Type

Journals

Download Paper

https://doi.org/10.1063/1.4996866

Local Download

Keywords

atomic, molecular, Nuclear physics, Quantum information science

Citation

Huber, M. , Arif, M. , Pushin, D. , Cory, D. , Sarenac, D. , Nsofini, J. and Ghofrani, K. (2017), Noise Refocusing in a Five-blade Neutron Interferometer, Journal of Applied Physics, [online], https://doi.org/10.1063/1.4996866, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=923412 (Accessed May 8, 2024)