Double-well periodic potential

A. Anomalous Diffusion and Dielectric Relaxation in a Double-well Periodic Potential... 

Equation (159), which involves the integral relaxation time x(nf, the effective relaxation time xef, and the smallest nonvanishing eigenvalue /., correctly predicts /Jot) both at low (co —> 0) and high (co ocj frequencies. Moreover, for a particular form of the potential V, x( ) ma> be determined in the entire frequency range 0 < co < oo as we shall presently see for a double-well periodic potential representing the internal field due to neighboring molecules. 

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