English

Revisiting Many-body Localization with Random Networks of Tensors

Quantum Physics 2015-12-10 v2

Abstract

We argue first that translational invariant Matrix Product can be interpreted as a stationary sea of particles. Next, rather than starting from some local Hamiltonian with random potentials, we consider fluctuations of the local tensors of a continuous one-parameter family of Matrix Product States. This leads to a mapping from 1+1+0 to 0+1+1, being time-space-λ\lambda. We argue that both pictures are equivalent. Finally, the holography principle and an operational argumentation is used to map the problem onto 1+0+1. Localization in 1-dimension, can be understood from a simple study spectral and mixing properties of finite dimensional quantum channels.

Keywords

Cite

@article{arxiv.1505.05386,
  title  = {Revisiting Many-body Localization with Random Networks of Tensors},
  author = {Benoît Descamps and Frank Verstraete},
  journal= {arXiv preprint arXiv:1505.05386},
  year   = {2015}
}

Comments

paper has been merged with arXiv:1508.07470