English

The Kirchhoff's Matrix-Tree Theorem revisited: counting spanning trees with the quantum relative entropy

Quantum Physics 2011-02-14 v1 Information Theory Combinatorics math.IT

Abstract

By revisiting the Kirchhoff's Matrix-Tree Theorem, we give an exact formula for the number of spanning trees of a graph in terms of the quantum relative entropy between the maximally mixed state and another state specifically obtained from the graph. We use properties of the quantum relative entropy to prove tight bounds for the number of spanning trees in terms of basic parameters like degrees and number of vertices.

Keywords

Cite

@article{arxiv.1102.2398,
  title  = {The Kirchhoff's Matrix-Tree Theorem revisited: counting spanning trees with the quantum relative entropy},
  author = {Vittorio Giovannetti and Simone Severini},
  journal= {arXiv preprint arXiv:1102.2398},
  year   = {2011}
}

Comments

12 pages

R2 v1 2026-06-21T17:25:03.426Z