Quantum states of neutrons in the Earth's gravitational field: Constraints for quasi-elastic reflections in the range Delta E similar to 10(-12)-10(-9) eV

摘要

A restrictive constraint for any quasi-elastic process was obtained in the previously inaccessible energy range &UDelta; E ∼ 10(-12)-3 . 10(-10) eV for reflections of ultracold neutrons from surfaces in the experiment on neutron quantum states in the earth's gravitational field. This could be useful for precision neutron spectrometry experiments and for the verification of extensions of quantum mechanics.