H. Rauch, TOWARDS NOVEL BUNCHING AND SQUEEZING METHODS FOR NEUTRONS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 338(1), 1994, pp. 9-17
Neutron spectroscopy is a still intensity limited technique and, there
fore, many attempts have been made to increase the luminosity. Perfect
crystals and magnetic fields are known as effective and coherent tool
s for neutron beam tailoring. Moderate magnetic fields cause momentum
shifts comparable to the width of the perfect crystal reflection curve
, which provides the basis for gated crystal systems and for crystal r
esonators. Various systems for an extremely high energy or momentum re
solution preserving an effective decoupling of the resolution from the
intensity are discussed. It is shown how travelling magnetic waves ca
n be used for an effective beam bunching from pulsed sources. Analogie
s to the squeezing phenomena known in laser spectroscopy will be shown
. Squeezed neutron states are discussed in connection with recent high
order interference experiments.