IV. Implications of Field-Sweep 36 A. Complications for S=3/2 (4) 36 B. Linewidth Anisotropy 39 C. Introduction to Frequency-dependent or (/-strain broadening 40 V. Low Frequency EPR 41 VI. Computer Simulations Inclusion of Strain Broadening 43 A. Intercalation of Planar copper(II) complexes in DNA (26) 48 B. Generalized ^-strain Broadening 49 C. Use of the Joint Density Function 50 D. Strategi...

The influence functional method of Feynman and Vernon is used to obtain a quantum master equation for a system subjected to a Lévy stable random force. The corresponding classical transport equations for the Wigner function are then derived, both in the limits of weak and strong friction. These are fractional extensions of the Klein-Kramers and the Smoluchowski equations. It is shown that the f...

Today laser pulses with electric fields comparable to or higher than the electrostatic forces binding valence electrons in atoms and molecules have become a routine tool with applications in laser acceleration of electrons and ions, generation of short wavelength emission from plasmas and clusters, laser fusion, etc. Intense fields are also naturally created during laser filamentation in the ai...

We calculate the escape rates of different dynamical processes for the case of a one-dimensional symmetric double-well potential. In particular, we compare the escape rates of a Smoluchowski process, i.e., a corresponding overdamped Brownian motion dynamics in a metastable potential landscape, with the escape rates obtained for a biologically motivated model known as the Fisher-Eigen process. T...

Heisenberg’s breakthrough to matrix mechanics was directly stimulated by studies of interaction of quantized material systems with electromagnetic radiation which came to a head in the Kramers-Heisenberg paper on dispersion theory in January 1925. In this talk, we will review the important contributions of Kramers, van Vleck, and Born to this subject. Important results from classical physics wi...

The title paper [Spectrochim. Acta A 213 (2019): 391–396] reports an improvement of the ”Poor Man’s Kramers–Kronig analysis” and ”Kramers–Kronig constrained variational thanks to ad hoc modification some analytical formulas existing in literature. This is not based on mathematical grounds. In this comment we show that no required but a correction formula used by authors 391–396].

We determine both barrier heights and prefactors for protein folding by applying constraints determined from experimental rate measurements to a Kramers theory for folding rate. The theoretical values are required to match the experimental values at two conditions of temperature and denaturant that induce the same stability. Several expressions for the prefactor in the Kramers rate equation are...