The notions of weak measurement, weak value, and two-state-vector formalism provide a new quantum-theoretical frame for extracting additional information from a system in the limit of small ...disturbances to its state. Here, we provide an application to the case of two-body scattering with one body weakly interacting with an environment. The direct connection to real scattering experiments is pointed out by making contact with the field of impulsive incoherent neutron scattering from molecules and condensed systems. In particular, we predict a new quantum effect in neutron-atom collisions, namely an observable momentum transfer deficit; or equivalently, a reduction of effective mass below that of the free scattering atom. Two corroborative experimental findings are shortly presented. Implications for current and further experiments are mentioned. An interpretation of this effect and the associated experimental results within conventional theory is currently unavailable.
The time-of-flight spectra of the neutron Compton scattering of solid palladium hydrides were measured at room temperature. This experiment, which was motivated by previous measurements on liquid H
...2O/D
2O mixtures as well as on niobium hydrides, showed anomalous behaviour of the total neutron scattering cross sections. Whereas at small scattering angles the scattering cross-section ratio for protons with respect to that for palladium corresponded to conventional theory, a strong decrease was observed for increasing angles. When converting the angle dependences into scattering time dependences both niobium hydrides and palladium hydrides give the same result, although having different crystallographic features.
Lokale Protonendiffusion in (H3O)SbTeO6 Krzystyniak, Maciej; Lerch, Martin; Aris Chatzidimitriou‐Dreismann, C.
Zeitschrift für anorganische und allgemeine Chemie (1950),
September 2010, Letnik:
636, Številka:
11
Journal Article
