Gaussian angle fluctuation

Then the angles ground state. At low temperatures, cpr are small and the Gaussian approximation of long-wavelength fluctuations of the angular Fourier components >(k) permits the Hamiltonian of Eq. (2.2.1) to be written as ... 

To describe correlated peptide conformation fluctuations in internal coordinates, the multivariate Gaussian distribution fiG used for characteristic packets and integration kernels in Cartesian space must be adapted to the periodic and multiply connected torsion angle space. Although the Carte-... 

Kloczkowski, A. Mark, J. E. Erman, B., Fluctuations, Correlations and Small Angle Neutron Scattering from Endlinked Gaussian Chains in Regular Bimodal Networks. Macromolecules 1991, 24, 3266-3275. 

Kloczkowski A, Mark JE, Erman B. Fluctuations, correlations and small angle neutron scattering from end-linked Gaussian chains in regular bimodal networks. Macromolecules 1991 24 3266-75. 

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