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Quantum motion of a neutron in a waveguide in the gravitational field

Abstract : We study theoretically the quantum motion of a neutron in a horizontal waveguide in the gravitational field of the Earth. The waveguide in question is equipped with a mirror below and a rough surface absorber above. We show that such a system acts as a quantum filter, i.e. it effectively absorbs quantum states with sufficiently high transversal energy but transmits low-energy states. The states transmitted are determined mainly by the potential well formed by the gravitational field of the Earth and the mirror. The formalism developed for quantum motion in an absorbing waveguide is applied to the description of the recent experiment on the observation of the quantum states of neutrons in the Earth's gravitational field.
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http://hal.in2p3.fr/in2p3-00025734
Contributor : Lpsc Bibliotheque <>
Submitted on : Monday, March 6, 2006 - 11:37:12 AM
Last modification on : Monday, July 20, 2020 - 9:18:27 AM

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A.Yu. Voronin, H. Abele, S. Baeßler, V.V. Nesvizhevsky, A.K. Petukhov, et al.. Quantum motion of a neutron in a waveguide in the gravitational field. Physical Review D, American Physical Society, 2006, 73, pp.044029. ⟨10.1103/PhysRevD.73.044029⟩. ⟨in2p3-00025734⟩

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