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7 papers · 1 filter
Phase transition between synchronous and asynchronous updating algorithms
Filippo Radicchi, Daniele Vilone, Hildegard Meyer-Ortmanns
We update a one-dimensional chain of Ising spins of length with algorithms which are parameterized by the probability for a certain site to get updated in one time step. Th…
Uncertainty in time--frequency representations on finite Abelian groups and applications
Felix Krahmer, Goetz E. Pfander, Peter Rashkov
Classical and recent results on uncertainty principles for functions on finite Abelian groups relate the cardinality of the support of a function to the cardinality of the support…
Metal mixing by buoyant bubbles in galaxy clusters
E. Roediger, M. Brueggen, P. Rebusco +2
Using a series of three-dimensional, hydrodynamic simulations on an adaptive grid, we have performed a systematic study on the effect of bubble-induced motions on metallicity profi…
Fallback accretion in the aftermath of a compact binary merger
S. Rosswog
Recent observations of long and short gamma-ray bursts have revealed a puzzling X-ray activity that in some cases continues for hours after the burst. It is difficult to reconcile…
Universality class of triad dynamics on a triangular lattice
Filippo Radicchi, Daniele Vilone, Hildegard Meyer-Ortmanns
We consider triad dynamics as it was recently considered by Antal \emph{et al.} [T. Antal, P. L. Krapivsky, and S. Redner, Phys. Rev. E {\bf 72}, 036121 (2005)] as an approach to s…
Radio signature of cosmological structure formation shocks
Matthias Hoeft, Marcus Brueggen
In the course of the formation of cosmological structures, large shock waves are generated in the intra-cluster medium. In analogy to processes in supernova remnants, these shock w…