Zobrazeno 1 - 10
of 590
pro vyhledávání: '"Guidetti M."'
Autor:
Pacheco-Barrios, K., Pinto, CB., Saleh Velez, FG., Duarte, D., Gunduz, ME., Simis, M., Lepesteur Gianlorenco, AC., Barouh, JL., Crandell, D., Guidetti, M., Battistella, L., Fregni, F.
Publikováno v:
In Clinical Neurophysiology October 2020 131(10):2375-2382
Autor:
Janus Collaboration, Baity-Jesi, M., Banos, R. A., Cruz, A., Fernandez, L. A., Gil-Narvion, J. M., Gordillo-Guerrero, A., Guidetti, M., Iniguez, D., Maiorano, A., Mantovani, F., Marinari, E., Martin-Mayor, V., Monforte-Garcia, J., Sudupe, A. Munoz, Navarro, D., Parisi, G., Pivanti, M., Perez-Gaviro, S., Ricci-Tersenghi, F., Ruiz-Lorenzo, J. J., Schifano, S. F., Seoane, B., Tarancon, A., Tellez, P., Tripiccione, R., Yllanes, D.
Publikováno v:
The European Physical Journal - Special Topics 210, 33-51 (2012)
We describe Janus, a massively parallel FPGA-based computer optimized for the simulation of spin glasses, theoretical models for the behavior of glassy materials. FPGAs (as compared to GPUs or many-core processors) provide a complementary approach to
Externí odkaz:
http://arxiv.org/abs/1204.4134
Autor:
Janus Collaboration, Baños, R. A., Cruz, A., Fernandez, L. A., Gil-Narvion, J. M., Gordillo-Guerrero, A., Guidetti, M., Iñiguez, D., Maiorano, A., Marinari, E., Martin-Mayor, V., Monforte-Garcia, J., Sudupe, A. Muñoz, Navarro, D., Parisi, G., Perez-Gaviro, S., Ruiz-Lorenzo, J. J., Schifano, S. F., Seoane, B., Tarancon, A., Tellez, P., Tripiccione, R., Yllanes, D.
Publikováno v:
Proc. Natl. Acad. Sci. USA (2012) 109, 6452-6456
Spin glasses are a longstanding model for the sluggish dynamics that appears at the glass transition. However, spin glasses differ from structural glasses for a crucial feature: they enjoy a time reversal symmetry. This symmetry can be broken by appl
Externí odkaz:
http://arxiv.org/abs/1202.5593
Autor:
The Janus Collaboration, Baños, R. Alvarez, Cruz, A., Fernandez, L. A., Gil-Narvion, J. M., Gordillo-Guerrero, A., Guidetti, M., Iñiguez, D., Maiorano, A., Mantovani, F., Marinari, E., Martin-Mayor, V., Monforte-Garcia, J., Muñoz-Sudupe, A., Navarro, D., Parisi, G., Perez-Gaviro, S., Ricci-Tersenghi, F., Ruiz-Lorenzo, J. J., Schifano, S. F., Seoane, B., Tarancon, A., Tripiccione, R., Yllanes, D.
Publikováno v:
Phys. Rev. B 84, 174209 (2011)
We study the sample-to-sample fluctuations of the overlap probability densities from large-scale equilibrium simulations of the three-dimensional Edwards-Anderson spin glass below the critical temperature. Ultrametricity, Stochastic Stability and Ove
Externí odkaz:
http://arxiv.org/abs/1107.5772
Autor:
Janus Collaboration, Banos, R. Alvarez, Cruz, A., Fernandez, L. A., Gil-Narvion, J. M., Gordillo-Guerrero, A., Guidetti, M., Maiorano, A., Mantovani, F., Marinari, E., Martin-Mayor, V., Monforte-Garcia, J., Sudupe, A. Munoz, Navarro, D., Parisi, G., Perez-Gaviro, S., Ruiz-Lorenzo, J. J., Schifano, S. F., Seoane, B., Tarancon, A., Tripiccione, R., Yllanes, D.
Publikováno v:
Phys. Rev. Lett. 105, 177202 (2010)
We numerically study the aging properties of the dynamical heterogeneities in the Ising spin glass. We find that a phase transition takes place during the aging process. Statics-dynamics correspondence implies that systems of finite size in equilibri
Externí odkaz:
http://arxiv.org/abs/1003.2943
Autor:
Janus Collaboration, Banos, R. Alvarez, Cruz, A., Fernandez, L. A., Gil-Narvion, J. M., Gordillo-Guerrero, A., Guidetti, M., Maiorano, A., Mantovani, F., Marinari, E., Martin-Mayor, V., Monforte-Garcia, J., Sudupe, A. Munoz, Navarro, D., Parisi, G., Perez-Gaviro, S., Ruiz-Lorenzo, J. J., Schifano, S. F., Seoane, B., Tarancon, A., Tripiccione, R., Yllanes, D.
Publikováno v:
J. Stat. Mech. (2010) P06026
We present a massive equilibrium simulation of the three-dimensional Ising spin glass at low temperatures. The Janus special-purpose computer has allowed us to equilibrate, using parallel tempering, L=32 lattices down to T=0.64 Tc. We demonstrate the
Externí odkaz:
http://arxiv.org/abs/1003.2569
Autor:
Banos, R. Alvarez, Cruz, A., Fernandez, L. A., Gordillo-Guerrero, A., Gil-Narvion, J. M., Guidetti, M., Maiorano, A., Mantovani, F., Marinari, E., Martin-Mayor, V., Monforte-Garcia, J., Sudupe, A. Munoz, Navarro, D., Parisi, G., Perez-Gaviro, S., Ruiz-Lorenzo, J. J., Seoane, B., Schifano, S. F., Tarancon, A., Tripiccione, R., Yllanes, D.
Publikováno v:
J. Stat. Mech. (2010) P05002
We study the 3D Disordered Potts Model with p=5 and p=6. Our numerical simulations (that severely slow down for increasing p) detect a very clear spin glass phase transition. We evaluate the critical exponents and the critical value of the temperatur
Externí odkaz:
http://arxiv.org/abs/1002.4288
Autor:
Cruz, A., Fernandez, L. A., Gordillo-Guerrero, A., Guidetti, M., Maiorano, A., Mantovani, F., Marinari, E., Martin-Mayor, V., Sudupe, A. Munoz, Navarro, D., Parisi, G., Perez-Gaviro, S., Ruiz-Lorenzo, J. J., Schifano, S. F., Sciretti, D., Tarancon, A., Tripiccione, R., Velasco, J. L., Yllanes, D., Young, A. P.
Publikováno v:
Phys. Rev. B 79, 184408 (2009)
We perform numerical simulations, including parallel tempering, on the Potts glass model with binary random quenched couplings using the JANUS application-oriented computer. We find and characterize a glassy transition, estimating the location of the
Externí odkaz:
http://arxiv.org/abs/0812.1287
Autor:
Janus Collaboration, Belletti, F., Cruz, A., Fernandez, L. A., Gordillo-Guerrero, A., Guidetti, M., Maiorano, A., Mantovani, F., Marinari, E., Martin-Mayor, V., Monforte, J., Sudupe, A. Muñoz, Navarro, D., Parisi, G., Perez-Gaviro, S., Ruiz-Lorenzo, J. J., Schifano, S. F., Sciretti, D., Tarancon, A., Tripiccione, R., Yllanes, D.
Publikováno v:
J. Stat. Phys. 135, 1121-1158 (2009)
Using the dedicated computer Janus, we follow the nonequilibrium dynamics of the Ising spin glass in three dimensions for eleven orders of magnitude. The use of integral estimators for the coherence and correlation lengths allows us to study dynamic
Externí odkaz:
http://arxiv.org/abs/0811.2864
Autor:
Belletti, F., Cotallo, M., Cruz, A., Fernandez, L. A., Gordillo-Guerrero, A., Guidetti, M., Maiorano, A., Mantovani, F., Marinari, E., Martin-Mayor, V., Sudupe, A. Munoz, Navarro, D., Parisi, G., Perez-Gaviro, S., Ruiz-Lorenzo, J. J., Schifano, S. F., Sciretti, D., Tarancon, A., Tripiccione, R., Velasco, J. L., Yllanes, D.
Publikováno v:
Phys. Rev. Lett. 101 (2008) 157201
We study numerically the nonequilibrium dynamics of the Ising Spin Glass, for a time that spans eleven orders of magnitude, thus approaching the experimentally relevant scale (i.e. {\em seconds}). We introduce novel analysis techniques that allow to
Externí odkaz:
http://arxiv.org/abs/0804.1471