4 papers
Kuramoto Oscillators on Chains, Rings and Cayley-trees
Filippo Radicchi, Hildegard Meyer-Ortmanns
We study systems of Kuramoto oscillators, driven by one pacemaker, on -dimensional regular topologies like linear chains, rings, hypercubic lattices and Cayley-trees. For the sp…
Dynamical Linked Cluster Expansions for Spin Glasses
H. Meyer-Ortmanns, T. Reisz
Dynamical linked cluster expansions are linked cluster expansions with hopping parameter terms endowed with their own dynamics. This amounts to a generalization from 2-point to poi…
Analytical studies for the critical line and critical endpoint of the electroweak phase transition
H. Meyer-Ortmanns, T. Reisz
We outline two approaches for studying the electroweak phase transition in the framework of the four-dimensional SU(2) Higgs model on a lattice. The first one is based on a combina…
Computer Aided Series Expansions for Critical Phenomena
Hildegard Meyer-Ortmanns, Thomas Reisz
Under quite general conditions critical phenomena can be described with high order linked cluster expansions. The coefficients of the series admit a graphical expansion that is gen…