Heating of ultracold neutrons on beryllium surfaces

UCN anomaly and the possibility for further decreasing neutron losses in traps

“…The question whether some anomalous UCN upscattering from solid surfaces takes place at low temperatures is not still answered: the results of experiments in Refs. [6] and [14] are in significant contradiction. Additional experiments are necessary, especially at low temperatures where ''standard'' UCN upscattering should be suppressed.…”

On Localization Effects in Underdoped Cuprates

“…In standard studies of localization the magnetoresistance is a main probe for extracting important informations on both backscattering and interaction effects. Unfortunately, in cuprates many different contributions to the magnetoresistance have been observed related to the superconducting fluctuations [11] and to the peculiar behavior of the Hall conductance [12]. These effects may mask the localization contributions and thus make an interpretation difficult.…”