Zobrazeno 1 - 10
of 121
pro vyhledávání: '"Pagá, A."'
Autor:
Janus Collaboration, Paga, I., He, J., Baity-Jesi, M., Calore, E., Cruz, A., Fernandez, L. A., Gil-Narvion, J. M., Pemartin, I. Gonzalez-Adalid, Gordillo-Guerrero, A., Iñiguez, D., Maiorano, A., Marinari, E., Martin-Mayor, V., Moreno-Gordo, J., Sudupe, A. Muñoz, Navarro, D., Orbach, R. L., Parisi, G., Perez-Gaviro, S., Ricci-Tersenghi, F., Ruiz-Lorenzo, J. J., Schifano, S. F., Schlagel, D. L., Seoane, B., Tarancon, A., Yllanes, D.
Rejuvenation and memory, long considered the distinguishing features of spin glasses, have recently been proven to result from the growth of multiple length scales. This insight, enabled by simulations on the Janus~II supercomputer, has opened the do
Externí odkaz:
http://arxiv.org/abs/2307.02224
Autor:
Janus Collaboration, Baity-Jesi, M., Calore, E., Cruz, A., Fernandez, L. A., Gil-Narvion, J. M., Pemartin, I. Gonzalez-Adalid, Gordillo-Guerrero, A., Iñiguez, D., Maiorano, A., Marinari, E., Martin-Mayor, V., Moreno-Gordo, J., Sudupe, A. Muñoz, Navarro, D., Paga, I., Parisi, G., Perez-Gaviro, S., Ricci-Tersenghi, F., Ruiz-Lorenzo, J. J., Schifano, S. F., Seoane, B., Tarancon, A., Yllanes, D.
Publikováno v:
PNAS 121, e2312880120 (2024)
We unveil the multifractal behavior of Ising spin glasses in their low-temperature phase. Using the Janus II custom-built supercomputer, the spin-glass correlation function is studied locally. Dramatic fluctuations are found when pairs of sites at th
Externí odkaz:
http://arxiv.org/abs/2306.04591
Autor:
Paga, I., Zhai, Q., Baity-Jesi, M., Calore, E., Cruz, A., Cummings, C., Fernandez, L. A., Gil-Narvion, J. M., Pemartin, I. Gonzalez-Adalid, Gordillo-Guerrero, A., Iñiguez, D., Kenning, G. G., Maiorano, A., Marinari, E., Martin-Mayor, V., Moreno-Gordo, J., Muñoz-Sudupe, A., Navarro, D., Orbach, R. L., Parisi, G., Perez-Gaviro, S., Ricci-Tersenghi, F., Ruiz-Lorenzo, J. J., Schifano, S. F., Schlagel, D. L., Seoane, B., Tarancon, A., Yllanes, D.
Publikováno v:
Phys. Rev. B 107, 214436- Published 23 June 2023
The extended principle of superposition has been a touchstone of spin glass dynamics for almost thirty years. The Uppsala group has demonstrated its validity for the metallic spin glass, CuMn, for magnetic fields $H$ up to 10 Oe at the reduced temper
Externí odkaz:
http://arxiv.org/abs/2207.10640
Autor:
Janus Collaboration, Baity-Jesi, M., Calore, E., Cruz, A., Fernandez, L. A., Gil-Narvion, J. M., Pemartin, I. Gonzalez-Adalid, Gordillo-Guerrero, A., Iñiguez, D., Maiorano, A., Marinari, E., Martin-Mayor, V., Moreno-Gordo, J., Muñoz-Sudupe, A., Navarro, D., Paga, I., 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:
Nature Physics 19, 978-985 (2023)
Memory and rejuvenation effects in the magnetic response of off-equilibrium spin glasses have been widely regarded as the doorway into the experimental exploration of ultrametricity and temperature chaos (maybe the most exotic features in glassy free
Externí odkaz:
http://arxiv.org/abs/2207.06207
Autor:
Paga, I., Zhai, Q., Baity-Jesi, M., Calore, E., Cruz, A., Fernandez, L. A., Gil-Narvion, J. M., Pemartin, I. Gonzalez-Adalid, Gordillo-Guerrero, A, Iñiguez, D., Maiorano, A., Marinari, E., Martin-Mayor, V., Moreno-Gordo, J., Muñoz-Sudupe, A., Navarro, D., Orbach, R. L., Parisi, G., Perez-Gaviro, S., Ricci-Tersenghi, F., Ruiz-Lorenzo, J. J., Schifano, S. F., Schlagel, D. L., Seoane, B., Tarancon, A., Tripiccione, R., Yllanes, D.
Publikováno v:
J. Stat. Mech. (2021) 033301
The synergy between experiment, theory, and simulations enables a microscopic analysis of spin-glass dynamics in a magnetic field in the vicinity of and below the spin-glass transition temperature $T_\mathrm{g}$. The spin-glass correlation length, $\
Externí odkaz:
http://arxiv.org/abs/2101.00821
Autor:
Janus Collaboration, Baity-Jesi, M., Calore, E., Cruz, A., Fernandez, L. A., Gil-Narvion, J. M., Pemartin, I. Gonzalez-Adalid, Gordillo-Guerrero, A., Iñiguez, D., Maiorano, A., Marinari, E., Martin-Mayor, V., Moreno-Gordo, J., Muñoz-Sudupe, A., Navarro, D., Paga, I., 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:
Communications Physics 4, 74 (2021)
We find a dynamic effect in the non-equilibrium dynamics of a spin glass that closely parallels equilibrium temperature chaos. This effect, that we name dynamic temperature chaos, is spatially heterogeneous to a large degree. The key controlling quan
Externí odkaz:
http://arxiv.org/abs/2011.09419
Autor:
Zhai, Q., Paga, I., Baity-Jesi, M., Calore, E., Cruz, A., Fernandez, L. A., Gil-Narvion, J. M., Pemartin, I. Gonzalez-Adalid, Gordillo-Guerrero, A., Iñiguez, D., Maiorano, A., Marinari, E., Martin-Mayor, V., Moreno-Gordo, J., Muñoz-Sudupe, A., Navarro, D., Orbach, R. L., Parisi, G., Perez-Gaviro, S., Ricci-Tersenghi, F., Ruiz-Lorenzo, J. J., Schifano, S. F., Schlagel, D. L., Seoane, B., Tarancon, A., Tripiccione, R., Yllanes, D.
Publikováno v:
Phys. Rev. Lett. 125, 237202 (2020)
The correlation length $\xi$, a key quantity in glassy dynamics, can now be precisely measured for spin glasses both in experiments and in simulations. However, known analysis methods lead to discrepancies either for large external fields or close to
Externí odkaz:
http://arxiv.org/abs/2007.03871
Autor:
González, Arnau, Arranz-Piera, Pol, Olives, Borja, Ivancic, Aleksandar, Pagà, Conrad, Cortina, Marc
Publikováno v:
In Technology in Society November 2023 75
Publikováno v:
Phys. Rev. B 100, 184412 (2019)
Motivated by recent experiments of exceptional accuracy, we study numerically the spin-glass dynamics in a film geometry. We cover all the relevant time regimes, from picoseconds to equilibrium, at temperatures at and below the 3D critical point. The
Externí odkaz:
http://arxiv.org/abs/1906.01646
Mapping expansive regions is an arduous and often times incomplete when performed by a single agent. In this paper we illustrate an extension of \texttt{Full SLAM} \cite{Dellaert06ijrr} and \cite{dong}, which ensures smooth maps with loop-closure for
Externí odkaz:
http://arxiv.org/abs/1805.02141