Geodesic
Absorption of sound by a dielectric crystal in the region of existence of second sound
Teoretičeskaâ i matematičeskaâ fizika, Tome 12 (1972) no. 1, pp. 106-114

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An expression is obtained for the coefficient of absorption of sound by a dielectric crystal by means of Zubarev's nonequilibrium statistical operator (density matrix) method. In the region of existence of second sound there is resonant absorption of the energy of the incident wave, which agrees with the results obtained by means of the Boltzmann equation. 
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     author = {T. Paszkiewicz},
     title = {Absorption of sound by a dielectric crystal in the region of existence of second sound},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {106--114},
     publisher = {mathdoc},
     volume = {12},
     number = {1},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1972_12_1_a9/}
}
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T. Paszkiewicz. Absorption of sound by a dielectric crystal in the region of existence of second sound. Teoretičeskaâ i matematičeskaâ fizika, Tome 12 (1972) no. 1, pp. 106-114. http://geodesic.mathdoc.fr/item/TMF_1972_12_1_a9/