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Title: Quantum levitation of nanoparticles seen with ultracold neutrons

Analyzing new experiments with ultracold neutrons (UCNs) we show that physical adsorption of nanoparticles/nanodroplets, levitating in high-excited states in a deep and broad potential well formed by van der Waals/Casimir-Polder (vdW/CP) forces results in new effects on a cross-road of the fields of fundamental interactions, neutron, surface and nanoparticle physics. Accounting for the interaction of UCNs with nanoparticles explains a recently discovered intriguing so-called 'small heating' of UCNs in traps. It might be relevant to the striking conflict of the neutron lifetime experiments with smallest reported uncertainties by adding false effects there.
Authors:
 [1] ;  [2] ; ;  [3] ; ; ;  [4]
  1. Institut Laue-Langevin (France)
  2. Lebedev Institute (Russian Federation)
  3. Laboratoire Kastler-Brossel, CNRS, ENS, UPMC (France)
  4. Joint Institute for Nuclear Research (Russian Federation)
Publication Date:
OSTI Identifier:
22210522
Resource Type:
Journal Article
Resource Relation:
Journal Name: Crystallography Reports; Journal Volume: 58; Journal Issue: 5; Other Information: Copyright (c) 2013 Pleiades Publishing, Ltd.; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; ADSORPTION; EXCITED STATES; INTERACTIONS; LEVITATION; NANOSTRUCTURES; SURFACES; ULTRACOLD NEUTRONS; VAN DER WAALS FORCES