Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1827031 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2009 | 4 Pages |
Abstract
We describe a neutron gravity quantum experiment of a new type. The gain in kinetic energy of free-falling neutrons is compensated by a quantum of energy ℏΩℏΩ, due to phase modulation of the neutron wave. As phase modulator a grating was used moving perpendicular with respect to the direction of the neutron wave propagation. As a result, monochromatic neutrons will have exactly the same energy after falling as before the free fall. The weak equivalence principle was tested to an accuracy of 2×10−3. A possible future experiment of more improved accuracy is discussed as well.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
A.I. Frank, P. Geltenbort, M. Jentschel, G.V. Kulin, D.V. Kustov, V.G. Nosov, A.N. Strepetov,