Momentum deficit in quantum glasses

Journal Article · Wed Jul 15 00:00:00 EDT 2009 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776109070139· OSTI ID:21443701

Andreev, A. F., E-mail: [e-mail].r ^[1]

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1. Russian Academy of Sciences, Kapitza Institute for Physical Problems (Russian Federation)

Using the concept of tunneling two-level systems, we explain the reduction of rotational inertia of disordered solid {sup 4}He observed in the torsional oscillator experiments. The key point is a peculiar quantum phenomenon of momentum deficit for two-level systems in moving solids. We show that an unusual state that is essentially different from both normal and superfluid solid states can be realized in quantum glasses. This state is characterized by reduced rotational inertia in oscillator experiments, by the absence of a superflow, and by the normal behavior in steady rotation.

• OSTI ID: 21443701
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 109, Issue 1; Other Information: DOI: 10.1134/S1063776109070139; Copyright (c) 2009 Pleiades Publishing, Ltd.; ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
GLASS
HELIUM 4
MOMENT OF INERTIA
OSCILLATORS
QUANTUM FLUIDS
ROTATION
SOLIDS
SUPERFLUIDITY
TUNNEL EFFECT
ELECTRONIC EQUIPMENT
EQUIPMENT
EVEN-EVEN NUCLEI
FLUIDS
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MOTION
NUCLEI
STABLE ISOTOPES