Publication Date:
2007
Short description:
Ultrametricity in the Edwards-Anderson model / P., Contucci; Giardina', Cristian; Giberti, Claudio; G., Parisi; Vernia, Cecilia. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 99:5(2007), pp. 057206-1-057206-4. [10.1103/PhysRevLett.99.057206]
abstract:
We test the property of ultrametricity for the spin-glass three-dimensional Edwards-Anderson model in zero magnetic field with numerical simulations up to 203 spins. We find an excellent agreement with the prediction of the mean field theory. Since ultrametricity is not compatible with a trivial structure of the overlap distribution, our result contradicts the droplet theory. © 2007 The American Physical Society.
Iris type:
Articolo su rivista
Keywords:
Computer simulation; Drop formation; Magnetic field effects; Mean field theory; Edwards Anderson model; Overlap distribution; Ultrametricity; Measurement theory
List of contributors:
P., Contucci; Giardina', Cristian; Giberti, Claudio; G., Parisi; Vernia, Cecilia
Published in: