265 citations · 3.7k across the 158 of their papers we have counts for
11 papers · 1 filter
Chaotic Gene Regulatory Networks Can Be Robust Against Mutations and Noise
Volkan Sevim, Per Arne Rikvold
Robustness to mutations and noise has been shown to evolve through stabilizing selection for optimal phenotypes in model gene regulatory networks. The ability to evolve robust muta…
Realization of the mean-field universality class in spin-crossover materials
Seiji Miyashita, Yusuké Konishi, Masamichi Nishino +2
In spin-crossover materials, the volume of a molecule changes depending on whether it is in the high-spin (HS) or low-spin (LS) state. This change causes distortion of the lattice.…
Unbiased Random Threshold Networks Are Chaotic or Critical
Volkan Sevim, Per Arne Rikvold
This paper has been withdrawn.
Evidence for a dynamic phase transition in [Co/Pt]_3 magnetic multilayers
D. T. Robb, Y. H. Xu, O. Hellwig +4
A dynamic phase transition (DPT) with respect to the period P of an applied alternating magnetic field has been observed previously in numerical simulations of magnetic systems. Ho…
EC-FORC: A New Cyclic Voltammetry Based Method for Examining Phase Transitions and Predicting Equilibrium
Ibrahim Abou Hamad, Daniel T. Robb, Mark A. Novotny +1
We propose a new, cyclic-voltammetry based experimental technique that can not only differentiate between discontinuous and continuous phase transitions in an adsorbate layer, but…
Two Modes of Magnetization Switching in a Simulated Iron Nanopillar in an Obliquely Oriented Field
S. H. Thompson, G. Brown, P. A. Rikvold +1
Finite-temperature micromagnetics simulations are employed to study the magnetization-switching dynamics driven by a field applied at an angle to the long axis of an iron nanopilla…
Nanostructure and velocity of field-driven solid-on-solid interfaces moving under a phonon-assisted dynamic
G. M Buendia, P. A. Rikvold, M. Kolesik +2
The nanoscopic structure and the stationary propagation velocity of (1+1)-dimensional solid-on-solid interfaces in an Ising lattice-gas model, which are driven far from equilibrium…
Network Growth with Preferential Attachment for High Indegree and Low Outdegree
Volkan Sevim, Per Arne Rikvold
We study the growth of a directed transportation network, such as a food web, in which links carry resources. We propose a growth process in which new nodes (or species) preferenti…
Conjugate field and fluctuation-dissipation relation for the dynamic phase transition in the two-dimensional kinetic Ising model
D. T. Robb, P. A. Rikvold, A. Berger +1
The two-dimensional kinetic Ising model, when exposed to an oscillating applied magnetic field, has been shown to exhibit a nonequilibrium, second-order dynamic phase transition (D…
Community-driven dispersal in an individual-based predator-prey model
Elise Filotas, Martin Grant, Lael Parrott +1
We present a spatial, individual-based predator-prey model in which dispersal is dependent on the local community. We determine species suitability to the biotic conditions of thei…
Are Genetically Robust Regulatory Networks Dynamically Different from Random Ones?
Volkan Sevim, Per Arne Rikvold
We study a genetic regulatory network model developed to demonstrate that genetic robustness can evolve through stabilizing selection for optimal phenotypes. We report preliminary…