English

Absolutely Continuous Spectrum for random Schroedinger operators on the Fibonacci and similar tree-strips

Mathematical Physics 2015-04-16 v2 math.MP Spectral Theory

Abstract

We will consider cross products of finite graphs with a class of trees that have arbitrarily but finitely long line segments, such as the Fibonacci tree. Such cross products are called tree-strips. We prove that for small disorder random Schr\"odinger operators on such tree-strips have purely absolutely continuous spectrum in a certain set.

Keywords

Cite

@article{arxiv.1304.3862,
  title  = {Absolutely Continuous Spectrum for random Schroedinger operators on the Fibonacci and similar tree-strips},
  author = {Christian Sadel},
  journal= {arXiv preprint arXiv:1304.3862},
  year   = {2015}
}

Comments

30 pages, two figures; result improved, contains a certain class of tree-strips