154 citations · 371 across the 11 of their papers we have counts for
12 papers
Scaling up the lattice dynamics of amorphous materials by orders of magnitude
Ivan Kriuchevskyi, Vladimir V. Palyulin, Rico Milkus +3
We generalise the non-affine theory of viscoelasticity for use with large, well-sampled systems of arbitrary chemical complexity. Having in mind predictions of mechanical and vibra…
Vibrational density of states and specific heat in glasses from random matrix theory
Matteo Baggioli, Rico Milkus, Alessio Zaccone
The low-temperature properties of glasses present important differences with respect to crystalline matter. In particular, models such as the Debye model of solids, which assume th…
Interpretation of the vibrational spectra of glassy polymers using coarse-grained simulations
Rico Milkus, Christopher Ness, Vladimir V. Palyulin +3
The structure and vibrational density of states (VDOS) of polymer glasses are investigated using numerical simulations based on the classical Kremer-Grest bead-spring model. We foc…
Parameter-free predictions of the viscoelastic response of glassy polymers from non-affine lattice dynamics
Vladimir V. Palyulin, Christopher Ness, Rico Milkus +3
We study the viscoelastic response of amorphous polymers using theory and simulations. By accounting for internal stresses and considering instantaneous normal modes (INMs) within…
A unifying model for random matrix theory in arbitrary space dimensions
Giovanni M. Cicuta, Johannes Krausser, Rico Milkus +1
A sparse random block matrix model suggested by the Hessian matrix used in the study of elastic vibrational modes of amorphous solids is presented and analyzed. By evaluating some…
Nonmonotonic dependence of polymer glass mechanical response on chain bending stiffness
Christopher Ness, Vladimir V. Palyulin, Rico Milkus +3
We investigate the mechanical properties of amorphous polymers by means of coarse-grained simulations and nonaffine lattice dynamics theory. A small increase of polymer chain bendi…
Non-affine lattice dynamics of defective fcc crystals
Johannes Krausser, Rico Milkus, Alessio Zaccone
The mechanical, thermal and vibrational properties of defective crystals are important in many different contexts, from metallurgy and solid-state physics to, more recently, soft m…
Atomic-scale origin of dynamic viscoelastic response and creep in disordered solids
Rico Milkus, Alessio Zaccone
Viscoelasticity has been described since the time of Maxwell as an interpolation of purely viscous and purely elastic response, but its microscopic atomic-level mechanism in solids…
Direct link between boson-peak modes and dielectric -relaxation in glasses
B. Cui, R. Milkus, A. Zaccone
We compute the dielectric response of glasses starting from a microscopic system-bath Hamiltonian of the Zwanzig-Caldeira-Leggett type and using an ansatz from kinetic theory for t…
The relation between stretched-exponential relaxation and the vibrational density of states in glassy disordered systems
B. Cui, R. Milkus, A. Zaccone
Amorphous solids or glasses are known to exhibit stretched-exponential decay over broad time intervals in several of their macroscopic observables: intermediate scattering function…
Local inversion-symmetry breaking controls the boson peak in glasses and crystals
R. Milkus, A. Zaccone
It is well known that amorphous solids display a phonon spectrum where the Debye law at low frequency melds into an anomalous excess-mode peak (the boson peak) before en…
Reducible chiral four-body interactions in nuclear matter
N. Kaiser, R. Milkus
The method of unitary transformations generates five classes of leading-order reducible chiral four-nucleon interactions which involve pion-exchanges and a spin-spin contact-term.…