Closeness relation autocorrelation function

The spatial autocorrelation function of concentration fluctuations and its Fourier transform are theoretically closely related to the stracture of fluids, so that it is called the static stmcture factor. Hie spatial autocorrelation function is expressed by either g(ri,r2),... [Pg.304]

One of the first applications of RQMC was to the rotational dynamics of carbonyl sulfide (OCS) molecules solvated in helium clusters, for cluster sizes (tV = 3,10) [42]. This and related work, described shortly, rest on the absorption spectrum given by the Fourier transform of the reptilian imaginary time electric dipole correlation function. Similarly, the optical activity is extracted from the autocorrelation of the molecular orientation vector. This work by Moroni and coworkers and/or Boroini and co-workers was closely followed by several other investigations of rotational dynamics in doped clusters, summarized as follows ... [Pg.337]