English

Non glassy ground-state in a long-range antiferromagnetic frustrated model in the hypercubic cell

Statistical Mechanics 2015-06-24 v2 Disordered Systems and Neural Networks

Abstract

We analize the statistical mechanics of a long-range antiferromagnetic model defined on a D-dimensional hypercube, both at zero and finite temperatures. The associated Hamiltonian is derived from a recently proposed complexity measure of Boolean functions, in the context of neural networks learning processes. We show that, depending of the value of D, the system either presents a low temperature antiferromagnetic stable phase or the global antiferromagnetic order disappears at any temperature. In the last case the ground state is an infinitely degenerated non-glassy one, composed by two equal size anti-aligned antiferromagnetic domains. We also present some results for the ferromagnetic version of the model.

Keywords

Cite

@article{arxiv.cond-mat/0302412,
  title  = {Non glassy ground-state in a long-range antiferromagnetic frustrated model in the hypercubic cell},
  author = {Leonardo Franco and Sergio A. Cannas},
  journal= {arXiv preprint arXiv:cond-mat/0302412},
  year   = {2015}
}

Comments

8 pages, 5 figures