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Accurate ground-state entropies from population Monte Carlo: The antiferromagnetic Ising model on the Shastry-Sutherland lattice
Denis Gessert, Wolfhard Janke, Martin Weigel
We demonstrate how the population annealing Monte Carlo simulation method can be used to compute the ground-state entropy to high precision. This approach is tested for the classic…
Meandering stripes in the frustrated - Ising model on the honeycomb lattice
Denis Gessert, Martin Weigel, Wolfhard Janke
We study the frustrated - Ising model on the honeycomb lattice with ferromagnetic nearest-neighbor couplings fixed at and strong antiferromagnetic next-nearest-ne…
Frustrated Ising model on the honeycomb lattice: Metastability and universality
Denis Gessert, Martin Weigel, Wolfhard Janke
We study the Ising model with competing ferromagnetic nearest- and antiferromagnetic next-nearest-neighbor interactions of strengths and , respectively, on the h…
Partition function zeros of the frustrated - Ising model on the honeycomb lattice
Denis Gessert, Martin Weigel, Wolfhard Janke
We study the zeros of the partition function in the complex temperature plane (Fisher zeros) and in the complex external field plane (Lee-Yang zeros) of a frustrated Ising model wi…
Optimized population Monte Carlo
P. L. Ebert, D. Gessert, W. Janke +1
Population Monte Carlo simulations in the form commonly referred to as population annealing can serve as a useful meta-algorithm for simulating systems with complex free-energy lan…