11 citations · 58 across the 9 of their papers we have counts for
8 papers
Effect of migration in a diffusion model for template coexistence in protocells
Jose F. Fontanari, Maurizio Serva
The compartmentalization of distinct templates in protocells and the exchange of templates between them (migration) are key elements of a modern scenario for prebiotic evolution. H…
A macroscopically frustrated Ising model
M. Pasquini, M. Serva
A disordered spin glass model where both static and dynamical properties depend on macroscopic magnetizations is presented. These magnetizations interact via random couplings and,…
2d frustrated Ising model with four phases
M. Pasquini, M. Serva
In this paper we consider a 2d random Ising system on a square lattice with nearest neighbour interactions. The disorder is short range correlated and asymmetry between the vertica…
Beyond the Mean Field Approximation for Spin Glasses
M. Serva, G. Paladin
We study the d-dimensional random Ising model using a Bethe-Peierls approximation in the framework of the replica method. We take into account the correct interaction only inside r…
Mean Field Solution of the Random Ising Model on the Dual Lattice
M. Serva, G. Paladin, J. Raboanary
We perform a duality transformation that allows one to express the partition function of the d-dimensional Ising model with random nearest neighbor coupling in terms of new spin va…
Constrained annealing for spin glasses
G. Paladin, M. Pasquini, M. Serva
The quenched free energy of spin glasses is estimated by means of annealed averages where the frustration is constrained to its average value. We discuss the case of d-dimensional…
Lack of self-average in weakly disordered one dimensional systems
A. Crisanti, G. Paladin, M. Serva +1
We introduce a one dimensional disordered Ising model which at zero temperature is characterized by a non-trivial, non-self-averaging, overlap probability distribution when the imp…
Products of Random Matrices for Disordered Systems
A Crisanti, G Paladin, M Serva +1
Products of random transfer matrices are applied to low dimensional disordered systems to evaluate numerically extensive quantities such as entropy and overlap probability distribu…