Experimental intramolecular vibrational dephasing transients for several large organic molecules are reanalyzed. Fits to the experimental data, as well as full numerical quantum calculations with a factorized potential surface for all active degrees of freedom of fluorene indicate that power law decays, not exponentials, occur at intermediate times. The results support a proposal that power law...

Optical spectra of aggregates polar dyes are discussed, fully accounting for polarizability the and coupling electronic vibrational degrees freedom.

The need for simulation of human foot mechanism has made researchers and engineers move towards different patterns to describe this movement. In this regard, optimal solutions such as energy consumption, accuracy, etc. are of utmost importance. In this paper, efforts have been made to present a new solution by designing a fully two-dimensional six-bar mechanism with one degree of freedom so tha...

The approach of defining quantum corrections on nuclear dynamics of molecular systems incorporated approximately into selected degrees of freedom, is described. The approach is based on the Madelung-de-Broglie-Bohm formulation of time-dependent quantum mechanics which represents a wavefunction in terms of an ensemble of trajectories. The trajectories follow classical laws of motion except that ...

The frictional energy dissipation mechanism of a supported two-layer graphene film under the excitation model washboard frequency is investigated by molecular dynamics simulations. results show that two local maxima in rate occur at special frequencies as increases from 0.1 to 0.6 THz. By extracting vibrational density states graphene, it found large numbers phonons with equal are produced. A t...

The evolution of quadrupole and octupole collectivity their coupling is investigated in a series even-even isotopes the actinides Ra, Th, U, Pu, Cm, Cf with neutron number interval $130\ensuremath{\leqslant}N\ensuremath{\leqslant}150$. Hartree-Fock-Bogoliubov approximation, based on parametrization D1M Gogny energy density functional, employed to generate potential surfaces depending upon axial...