Registration Number
0212U000840,
0110U006456
, R & D reports
Title
Searching for and modeling of new nanosystems in condensed helium: theoretical investigations.
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Head
Pashitskii Ernst Anatolievich,
Registration Date
10-04-2012
Organization
Institute of physics NASU
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The object of research - superfluid (SF) liquid helium (4He). Objective: search for the conditions of existence of nanometer-scale special structures in SF helium interacting with external electromagnetic (EM) fields. Research methods - theoretical studies of the effects of polarization of 4Не atoms exposed to local nanometer-scale density gradients in the framework of the phenomenological method of two-fluid hydrodynamics and the method of secondary quantization. Possible mechanisms of alternating polarization of SF helium in the fields of the first and second sounds, as well as in the presence of rotonic excitations, are considered. The mechanism, which is responsible for static polarization of 4Не atoms in the vicinity of solid wall and creation of a nanometer-thick surface dipole layer in SF helium, where interaction of polarized rotons with EM field and resonance absorption of EM field's energy take place, is established.
Product Description
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Пашицький Ернст Анатолійович
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2020-04-02
