Vibrational spectroscopy of adsorbates

Bridging the Gap Between the Atomic-Scale and Macroscopic Modeling of Friction

“…For the dependence g(r, v), one can use the expression found for the adatom vibrating near the surface [32,33]. Of course, the extension of the dependence obtained for vibration of a single adatom to the system of interacting moving lubricant atoms, may lead to some errors, but this approach should be much better than the one that uses an arbitrary constant for the damping coefficient g [6].…”

Dynamical phase diagram of the dc-driven underdamped Frenkel-Kontorova chain

“…In the present work we study the behavior of the system in a wide range of frictions in the underdamped limit η ≪ ω x , corresponding to typical adsystems [16]. In the simulation, we first look for the minimum-energy configuration of the system.…”

Recent developments on the CKM matrix

“…As a reconciliation of the original QCD sum rule approach 63, 64 and the application of perturbation theory to hard processes, LCSR exhibit several advantages in the calculation of quantities like meson form factors. [65][66][67][68][69] In the hard scattering region the light-cone operator product expansion (OPE) is applicable, based on which form factors are expressed as a convolution of light-cone distribution amplitudes (LCDA) with a perturbatively calculable hard kernel. Leading twist and a few sub-leading twist LCDA are dominant.…”