Publications by authors named "I Paga"
Article Synopsis
- Research reveals that rejuvenation and memory in spin glasses are linked to multiple length scales, supported by simulations from the Janus II supercomputer.
- The study combines numerical simulations with experiments to introduce two key coefficients that measure memory in spin glasses.
- A new coefficient from Freedberg et al. is shown to be physically equivalent by analyzing its behavior in relation to temperature and waiting time.
Multifractality in spin glasses.
Proc Natl Acad Sci U S A
January 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 the same distance are compared.
View Article and Find Full Text PDFScaling Law Describes the Spin-Glass Response in Theory, Experiments, and Simulations.
Phys Rev Lett
December 2020
The correlation length ξ, 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 the glass temperature. We solve this problem by introducing a scaling law that takes into account both the magnetic field and the time-dependent spin-glass correlation length.
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