Abstract:
Spiral magnetic systems are investigated on the basis of the method of
reduced description and the concept of quasiaverages; the equilibrium
states and relaxation processes are studied. The spectrum of spin
waves is found in the “hydrodynamic” region. It is shown that the
system is characterized by ten transport coefficients, which are represented
in terms of the two-time correlation functions of the flux
operators and satisfy the Onsager principle.
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