Gas dynamics of quasiparticles
A.I. AkhiezerNational Research Center, Physicotechnical Institute, 310108, Kharkov; Kharkov State University, 310077, KharkovV.F. AleksinNational Research Center, Physicotechnical Institute, 310108, Kharkov; Kharkov State University, 310077, KharkovValery KhodusovNational Research Center, Physicotechnical Institute, 310108, Kharkov; Kharkov State University, 310077, Kharkov
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The fluid dynamics and kinetics of a weakly nonideal gas of quasiparticles in pure single crystals is studied at low temperatures. Transport equations in a gas of quasiparticles are derived by using the kinetic theory, taking into account the extraneous fields modulating the energy of quasiparticles. Secondary and coupled waves are studied as well as their excitation and attenuation in a gas of quasiparticles.
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