27 citations · 87 across the 7 of their papers we have counts for
6 papers · 1 filter
Critical energy density of O models in
Rachele Nerattini, Andrea Trombettoni, Lapo Casetti
A relation between O models and Ising models has been recently conjectured [L. Casetti, C. Nardini, and R. Nerattini, Phys. Rev. Lett. 106, 057208 (2011)]. Such a relation, in…
Density of states of the model: an energy landscape approach
Cesare Nardini, Rachele Nerattini, Lapo Casetti
Among the stationary configurations of the Hamiltonian of a classical O lattice spin model, a class can be identified which is in one-to-one correspondence with all the the co…
Exploring the energy landscape of XY models
Rachele Nerattini, Michael Kastner, Dhagash Mehta +1
We investigate the energy landscape of two- and three-dimensional XY models with nearest-neighbor interactions by analytically constructing several classes of stationary points of…
Density of states of continuous and discrete spin models: a case study
Cesare Nardini, Rachele Nerattini, Lapo Casetti
A relation between O(n) lattice spin models and Ising models defined on the same lattice was recently put forward [L. Casetti, C. Nardini, and R. Nerattini, Phys. Rev. Lett. 106, 0…
On a microcanonical relation between continuous and discrete spin models
Lapo Casetti, Cesare Nardini, Rachele Nerattini
A relation between a class of stationary points of the energy landscape of continuous spin models on a lattice and the configurations of a Ising model defined on the same lattice s…
Kinetic energy and microcanonical nonanalyticities in finite and infinite systems
Lapo Casetti, Michael Kastner, Rachele Nerattini
In contrast to the canonical case, microcanonical thermodynamic functions can show nonanalyticities also for finite systems. In this paper we contribute to the understanding of the…