256 citations
- California Institute of TechnologyUS7 papers
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- Max Planck Institute for Gravitational PhysicsDE6 papers
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6 papers · 1 filter
Matching Kasteleyn Cities for Spin Glass Ground States
Creighton K. Thomas, A. Alan Middleton
As spin glass materials have extremely slow dynamics, devious numerical methods are needed to study low-temperature states. A simple and fast optimization version of the classical…
Linking physics and algorithms in the random-field Ising model
Jan H. Meinke, A. Alan Middleton
The energy landscape for the random-field Ising model (RFIM) is complex, yet algorithms such as the push-relabel algorithm exist for computing the exact ground state of an RFIM sam…
The mean field infinite range p=3 spin glass: equilibrium landscape and correlation time scales
Alain Billoire, Luca Giomi, Enzo Marinari
We investigate numerically the dynamical behavior of the mean field 3-spin spin glass model: we study equilibrium dynamics, and compute equilibrium time scales as a function of the…
Improved extremal optimization for the Ising spin glass
A. Alan Middleton
A version of the extremal optimization (EO) algorithm introduced by Boettcher and Percus is tested on 2D and 3D spin glasses with Gaussian disorder. EO preferentially flips spins t…
Driven depinning of strongly disordered media and anisotropic mean-field limits
M. Cristina Marchetti, A. Alan Middleton, Karl Saunders +1
Extended systems driven through strong disorder are modeled generically using coarse-grained degrees of freedom that interact elastically in the directions parallel to the driving…
Scaling, domains, and states in the four-dimensional random field Ising magnet
A. Alan Middleton
The four dimensional Gaussian random field Ising magnet is investigated numerically at zero temperature, using samples up to size , to test scaling theories and to investigat…