Spin Glasses on the Hypercube
arXiv:0911.4667 · doi:10.1103/PhysRevB.81.134403
Abstract
We present a mean field model for spin glasses with a natural notion of distance built in, namely, the Edwards-Anderson model on the diluted D-dimensional unit hypercube in the limit of large D. We show that finite D effects are strongly dependent on the connectivity, being much smaller for a fixed coordination number. We solve the non trivial problem of generating these lattices. Afterwards, we numerically study the nonequilibrium dynamics of the mean field spin glass. Our three main findings are: (i) the dynamics is ruled by an infinite number of time-sectors, (ii) the aging dynamics consists on the growth of coherent domains with a non vanishing surface-volume ratio, and (iii) the propagator in Fourier space follows the p^4 law. We study as well finite D effects in the nonequilibrium dynamics, finding that a naive finite size scaling ansatz works surprisingly well.
14 pages, 22 figures
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Cited by in corpus (8)
- Nature of the spin-glass phase at experimental length scales
- The correspondence between long-range and short-range spin glasses
- Aging in coarsening diluted ferromagnets
- Testing statics-dynamics equivalence at the spin-glass transition in three dimensions
- Dynamic Variational Study of Chaos: Spin Glasses in Three Dimensions
- Kinked Entropy and Discontinuous Microcanonical Spontaneous Symmetry Breaking
- Spatial correlation functions and dynamical exponents in very large samples of 4D spin glasses
- Deepening the knowledge of Spin Glasses: Metastate, Off-equilibrium phenomena and Temperature Chaos