45 citations · 181 across the 11 of their papers we have counts for
6 papers · 1 filter
Zero Temperature Dynamics of Ising Systems on Hypercubes
Ruixin Chen, Jonathan Machta, Charles M. Newman +1
We study the zero-temperature Glauber dynamics of homogeneous Ising ferromagnets on hypercubes, as their dimension d varies. We investigate the asymptotic (d goes to infinity and t…
Long-Time Predictability in Disordered Spin Systems Following a Deep Quench
J. Ye, R. Gheissari, J. Machta +2
We study the problem of predictability, or "nature vs. nurture", in several disordered Ising spin systems evolving at zero temperature from a random initial state: how much does th…
Nature vs. Nurture: Predictability in Low-Temperature Ising Dynamics
J. Ye, J. Machta, C. M. Newman +1
Consider a dynamical many-body system with a random initial state subsequently evolving through stochastic dynamics. What is the relative importance of the initial state ("nature")…
Granular gases under extreme driving
W. Kang, J. Machta, E. Ben-Naim
We study inelastic gases in two dimensions using event-driven molecular dynamics simulations. Our focus is the nature of the stationary state attained by rare injection of large am…
Strengths and Weaknesses of Parallel Tempering
Jon Machta
Parallel tempering, also known as replica exchange Monte Carlo, is studied in the context of two simple free energy landscapes. The first is a double well potential defined by two…
Parallel dynamics and computational complexity of the Bak-Sneppen model
Jon Machta, Xuenan Li
The parallel computational complexity of the Bak-Sneppen evolution model is studied. It is shown that Bak-Sneppen histories can be generated by a massively parallel computer in a t…