We numerically show that metastable states, similar to the quasi-stationary states found in the so-called Hamiltonian Mean Field Model, are also present in a generalized model in which N classical spins (rotators) interact through ferromagnetic couplings decaying as r(-alpha), where r is their distance over a regular lattice. Scaling laws with N are briefly discussed. (C) 2002 Elsevier Science B.V. All rights reserved.
Metastable states in a class of long-range Hamiltonian systems / Alessandro, Campa; Giansanti, Andrea; Daniele, Moroni. - In: PHYSICA. A. - ISSN 0378-4371. - 305:1-2(2002), pp. 137-143. (Intervento presentato al convegno International School and Workshop on Non Extensive Thermodynamics and Physical Applications (NEXT 2001) tenutosi a VILLASIMIUS, ITALY nel MAY 23-30, 2001) [10.1016/s0378-4371(01)00652-5].
Metastable states in a class of long-range Hamiltonian systems
GIANSANTI, Andrea;
2002
Abstract
We numerically show that metastable states, similar to the quasi-stationary states found in the so-called Hamiltonian Mean Field Model, are also present in a generalized model in which N classical spins (rotators) interact through ferromagnetic couplings decaying as r(-alpha), where r is their distance over a regular lattice. Scaling laws with N are briefly discussed. (C) 2002 Elsevier Science B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
