Noise Refocusing in a Five-blade Neutron Interferometer
arXiv:1704.03589 · doi:10.1063/1.4996866
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, 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, while the proposed five-blade neutron interferometer is shown to be immune to both low-frequency mechanical vibration noise and dynamical phase noise.
arXiv comment9 pages, 8 figures
References in corpus (11)
- Atom Interferometers
- A Waveguide for Bose-Einstein Condensates
- Measurement of the Spatial Correlation Function of Phase Fluctuating Bose-Einstein Condensates
- Neutron Limit on the Strongly-Coupled Chameleon Field
- Effects of dephasing on shot-noise in an electronic Mach-Zehnder interferometer
- A Neutron Interferometric Method to Provide Improved Constraints on Non-Newtonian Gravity at the Nanometer Scale
- Decoherence Free Neutron Interferometry
- Measuring the Neutron's Mean Square Charge Radius Using Neutron Interferometry
- Decoupling of a Neutron Interferometer from Temperature Gradients
- Quantum Information Approach to Dynamical Diffraction Theory
- Precision neutron interferometric measurements of the n-p, n-d, and n-3He zero-energy coherent neutron scattering amplitudes
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