Abstract Recently, it was pointed out that all chiral crystals with spin-orbit coupling (SOC) can be Kramers Weyl semimetals (KWSs) which possess points pinned at time-reversal invariant momenta. In this work, we show achiral non-centrosymmetric materials SOC a new class of topological materials, term nodal line metals (KNLMs). KNLMs, there are doubly degenerate lines, call lines (KNLs), connec...

As experimental techniques in biophysics have progressed at the single molecule level, there has been considerable interest in understanding how external mechanical influences (such as load) affect chemical reactions. The majority of biophysical studies investigating load-dependent kinetics use an equation where the rate constant exponentially depends on force, which is sometimes called Bell's ...

This paper examines the highand low-frequency asymptotic consequences of the Kramers-Kronig relations which hold for the real and imaginary parts of the Fourier transform of the response of any linear causal system. By knowing or assuming the highor low-frequency expansion of one of these functions, the corresponding asymptotic expansion of the other is easily determined, and furthermore the co...

2014 Normal and oblique incidence reflectances of GaTe have been measured in the 2.5 to 26 eV range using polarized synchrotron radiation. We have deduced 3 complex refractive indices, relative to 3 different crystallographic directions by means of a new method consistent with the Kramers-Kronig relations. We have verified that the electronic transitions in the 20 eV region, from the 3d Ga leve...

on the occasion of his 50th birthday Abstract In their 1993 paper 16], Schimansky-Geier and Herzel discovered numerically that the Kramers oscillator (which is identical with the Duung oscillator forced by additive white noise) has a positive top Lyapunov exponent in the low damping regime. In this paper, we study the Kramers oscillator from the point of view of random dynamical systems, to whi...

Kramers’ law describes the mean transition time of an overdamped Brownian particle between local minima in a potential landscape. We review different approaches that have been followed to obtain a mathematically rigorous proof of this formula. We also discuss some generalisations, and a case in which Kramers’ law is not valid. This review is written for both mathematicians and theoretical physi...

Articles you may be interested in Velocity dependence of friction and Kramers relaxation rates Is slow thermal isomerization in viscous solvents understandable with the idea of frequency dependent friction? We present new data on the ground state isomerization rate of DODeI and compare our results to previously obtained excited state data. We find that the one-dimensional Kramers expression doe...

Many important processes in science involve the escape of a particle over a barrier. In this review, we report, extend, and interpret various theories of noiseactivated escape. We discuss the connection between many-body transition state theory and Kramers' original diffusive Brownian motion approach (both in oneand multidimensional potential fields) and emphasize the physical situation inheren...

Recent experiments have shown that, for several proteins, the dependence of folding and unfolding rates on solvent viscosity does not obey Kramers' theory. Such a departure from standard Kramers' behavior is often attributed to the existence of internal friction, related to the structure of a polypeptide chain. In this paper, we propose an entirely different mechanism leading to violation of Kr...