The density–density correlator and Fermi-gas oscillations in a random field
A. N. ArtemovPhysicotechnical Institute, Academy of Sciences of the Ukrainian SSR, DonetskА. М. ГришинPhysicotechnical Institute, Academy of Sciences of the Ukrainian SSR, Donetsk
ABI
Аннотация
The density–density correlator is calculated with the aid of the supersymmetry method in the quadratic approximation in the fluctuations. The poles of the correlator give the spectrum of zero-sound oscillations which are responsible for the evolution of states in the stage preceding localization.
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