Off-equilibrium fluctuation-dissipation relations in the 3d Ising spin glass in a magnetic field
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2003
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American Physical Society
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Abstract
We study the fluctuation-dissipation relations for a three dimensional Ising spin glass in a magnetic field both in the high temperature phase as well as in the low temperature one. In the region of times simulated we have found that our results support a picture of the low temperature phase with broken replica symmetry, but a droplet behavior cannot be completely excluded.
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© 2003 American Physical Society. We acknowledge partial financial support from CICyT (AEN97-1680, FPA2000-0956, FPA2001-1813 and PB98- 0842) and DGA (P46/97). We also want to acknowledge the contribution of Prof. Domingo González to the development of Spanish physics, and in particular his help to our group, which has been essential to build our dedicated computers. We finally thank Giorgio Parisi for interesting comments. S. J. is a DGA fellow.