Delocalization of vibrational modes caused by electric dipole interaction

Phys. Rev. Lett. 64, 547 – Published 29 January 1990
L. S. Levitov


The electric dipole interaction of vibrational modes destroys their localization. Real-space renormalization is constructed for the process of delocalization. The renormalization-group equation for the distribution of dipole parameters is similar to the Boltzmann kinetic equation. Conservation laws are found and an H theorem is proven. Stationary distributions form a six-parameter manifold of fixed points. The two-point dynamical correlation function has the form t-1F(t-1/3r), where F(x) is a universal function.


  • Received 17 May 1989
  • Published in the issue dated 29 January 1990

© 1990 The American Physical Society

Authors & Affiliations

L. S. Levitov

  • L. D. Landau Institute for Theoretical Physics, GSP-1, Kosygin st., 2, 117 940, Moscow, Union of Soviet Socialist Republics

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