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Excitations, BEC, and partially ordered states of liquid 4He in disorder
We propose measurements of the elementary phonon-roton (p-r) excitations of liquid 4He confined in porous MCM-41 (45 Å pore diameter) at wave vectors Q ¿ beyond the roton¿, 2.4... -
Neutron reflection from 3He layer adsorbed on liquid 4He surface
More than four decades ago A. F. Andreev predicted theoretically the existence of quantum states of 3He atoms on free surface of liquid 4He . In other words, at low...