272 citations · 603 across the 17 of their papers we have counts for
5 papers · 1 filter
Testing the Edwards hypothesis in spin systems under tapping dynamics
Johannes Berg, Silvio Franz, Mauro Sellitto
The Edwards hypothesis of ergodicity of blocked configurations for gently tapped granular materials is tested for abstract models of spin systems on random graphs and spin chains w…
Spin-models of granular compaction: From one-dimensional models to random graphs
Johannes Berg, Anita Mehta
We discuss two athermal types of dynamics suitable for spin-models designed to model repeated tapping of a granular assembly. These dynamics are applied to a range of models charac…
Metastable configurations of spin models on random graphs
Johannes Berg, Mauro Sellitto
One-flip stable configurations of an Ising-model on a random graph with fluctuating connectivity are examined. In order to perform the quenched average of the number of stable conf…
Glassy dynamics in granular compaction: sand on random graphs
Johannes Berg, Anita Mehta
We discuss the use of a ferromagnetic spin model on a random graph to model granular compaction. A multi-spin interaction is used to capture the competition between local and globa…
Statistical mechanics of asset markets with private information
Johannes Berg, Matteo Marsili, Aldo Rustichini +1
Traders in a market typically have widely different, private information on the return of an asset. The equilibrium price of the asset may reflect this information more accurately…