4 papers
Extinction Transition on a Pie
Nadav M. Shnerb
Extinction transition of bacteria under forced rotation is analyzed in pie geometry. Under convection, separation of the radial and the azimuthal degrees of freedom is not possible…
Spreading and annihilating particles: surprises from mean-field theory
Georg Foltin, Karin A. Dahmen, Nadav M. Shnerb
We study the pairwise annihilation process inert of a number of random walkers, which originally are localized in a small region in space. The size of the colony and the t…
Life and Death near a Windy Oasis
Karin A. Dahmen, David R. Nelson, Nadav M. Shnerb
We propose a simple experiment to study delocalization and extinction in inhomogeneous biological systems. The nonlinear steady state for, say, a bacteria colony living on and near…
Second Quantization of the Stueckelberg Relativistic Quantum Theory and Associated Gauge Fields
L. P. Horwitz
The gauge compensation fields induced by the differential operators of the Stueckelberg-Schrödinger equation are discussed, as well as the relation between these fields and the sta…