27 citations · 45 across the 2 of their papers we have counts for
4 papers · 1 filter
Sparse random matrices and vibrational spectra of amorphous solids
Y. M. Beltukov, D. A. Parshin
A random matrix approach is used to analyze the vibrational properties of amorphous solids. We investigated a dynamical matrix M=AA^T with non-negative eigenvalues. The matrix A is…
Density of states in random lattices with translational invariance
Y. M. Beltukov, D. A. Parshin
We propose a random matrix approach to describe vibrational excitations in disordered systems. The dynamical matrix M is taken in the form M=AA^T where A is some real (not generall…
Pressure dependence of the Boson peak in glasses
V. L. Gurevich, D. A. Parshin, H. R. Schober
The inelastic scattering intensities of glasses and amorphous materials has a maximum at a low frequency, the so called Boson peak. Under applied hydrostatic pressure, , the Bos…
Oscillations of the Electric-Dipole Echo in Glasses in a Magnetic Field
D. A. Parshin
Using a simple diagram technique we derive the electric-dipole echo amplitude from two-level systems with a quadrupole nuclear moment in glasses in an external magnetic field. We s…