Noise Refocusing in a Five-blade Neutron Interferometer
Michael G. Huber, Muhammad D. Arif, Dimitry A. Pushin, David G. Cory, Dusan Sarenac, Joachim Nsofini, Kamyar Ghofrani
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.
, Arif, M.
, Pushin, D.
, Cory, D.
, Sarenac, D.
, Nsofini, J.
and Ghofrani, K.
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 February 25, 2024)