TY - JOUR
T1 - Dynamical transition in the D=3 Edwards-Anderson spin glass in an external magnetic field
AU - Baity-Jesi, M.
AU - Baños, R. A.
AU - Cruz, A.
AU - Fernandez, L. A.
AU - Gil-Narvion, J. M.
AU - Gordillo-Guerrero, A.
AU - Iñiguez, D.
AU - Maiorano, A.
AU - Mantovani, F.
AU - Marinari, E.
AU - Martin-Mayor, V.
AU - Monforte-Garcia, J.
AU - Muñoz Sudupe, A.
AU - Navarro, D.
AU - Parisi, G.
AU - Perez-Gaviro, S.
AU - Pivanti, M.
AU - Ricci-Tersenghi, F.
AU - Ruiz-Lorenzo, J. J.
AU - Schifano, S. F.
AU - Seoane, B.
AU - Tarancon, A.
AU - Tripiccione, R.
AU - Yllanes, D.
PY - 2014/3/31
Y1 - 2014/3/31
N2 - We study the off-equilibrium dynamics of the three-dimensional Ising spin glass in the presence of an external magnetic field. We have performed simulations both at fixed temperature and with an annealing protocol. Thanks to the Janus special-purpose computer, based on field-programmable gate array (FPGAs), we have been able to reach times equivalent to 0.01 s in experiments. We have studied the system relaxation both for high and for low temperatures, clearly identifying a dynamical transition point. This dynamical temperature is strictly positive and depends on the external applied magnetic field. We discuss different possibilities for the underlying physics, which include a thermodynamical spin-glass transition, a mode-coupling crossover, or an interpretation reminiscent of the random first-order picture of structural glasses.
AB - We study the off-equilibrium dynamics of the three-dimensional Ising spin glass in the presence of an external magnetic field. We have performed simulations both at fixed temperature and with an annealing protocol. Thanks to the Janus special-purpose computer, based on field-programmable gate array (FPGAs), we have been able to reach times equivalent to 0.01 s in experiments. We have studied the system relaxation both for high and for low temperatures, clearly identifying a dynamical transition point. This dynamical temperature is strictly positive and depends on the external applied magnetic field. We discuss different possibilities for the underlying physics, which include a thermodynamical spin-glass transition, a mode-coupling crossover, or an interpretation reminiscent of the random first-order picture of structural glasses.
UR - https://www.scopus.com/pages/publications/84898954237
U2 - 10.1103/PhysRevE.89.032140
DO - 10.1103/PhysRevE.89.032140
M3 - 文章
AN - SCOPUS:84898954237
SN - 1539-3755
VL - 89
JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
IS - 3
M1 - 032140
ER -