Zobrazeno 1 - 10
of 567
pro vyhledávání: '"Martin-Mayor V"'
Autor:
Dahlberg, E. D., Pemartín, I. González-Adalid, Marinari, E., Martin-Mayor, V., Moreno-Gordo, J., Orbach, R. L., Paga, I., Parisi, G., Ricci-Tersenghi, F., Ruiz-Lorenzo, J. J., Yllanes, D.
The study of spin-glass dynamics, long considered the paradigmatic complex system, has reached important milestones. The availability of high-quality single crystals has allowed the experimental measurement of spin-glass coherence lengths of almost m
Externí odkaz:
http://arxiv.org/abs/2412.08381
Publikováno v:
J. Stat. Mech. (2024) 013301
We have studied numerically the appearance of multiscaling behavior in the three-dimensional ferromagnetic Ising site diluted model, in the form of a multifractal distribution of the decay exponents for the spatial correlation functions at the critic
Externí odkaz:
http://arxiv.org/abs/2309.06752
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
Publikováno v:
Phys. Rev. E 109, 014133 (2024)
Genome assembly, the process of reconstructing a long genetic sequence by aligning and merging short fragments, or reads, is known to be NP-hard, either as a version of the shortest common superstring problem or in a Hamiltonian-cycle formulation. Th
Externí odkaz:
http://arxiv.org/abs/2210.09986
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
Use of dedicated computers in spin glass simulations allows one to equilibrate very large samples (of size as large as $L=32$) and to carry out "computer experiments" that can be compared to (and analyzed in combination with) laboratory experiments o
Externí odkaz:
http://arxiv.org/abs/2205.14089
Autor:
Fernandez, L. A., Pemartin, I. Gonzalez-Adalid, Martin-Mayor, V., Parisi, G., Ricci-Tersenghi, F., Rizzo, T., Ruiz-Lorenzo, J. J., Veca, M.
Publikováno v:
Phys. Rev. E 105, 054106 (2022)
A growing body of evidence indicates that the sluggish low-temperature dynamics of glass formers (e.g. supercooled liquids, colloids or spin glasses) is due to a growing correlation length. Which is the effective field theory that describes these cor
Externí odkaz:
http://arxiv.org/abs/2107.06636
Autor:
Bernaschi, M., Bisson, M., Fatica, M., Marinari, E., Martin-Mayor, V., Parisi, G., Ricci-Tersenghi, F.
Publikováno v:
EPL, 133 (2021) 60005
A recent 3-XORSAT challenge required to minimize a very complex and rough energy function, typical of glassy models with a random first order transition and a golf course like energy landscape. We present the ideas beyond the quasi-greedy algorithm a
Externí odkaz:
http://arxiv.org/abs/2102.09510