English

The GHZ/W-calculus contains rational arithmetic

Logic in Computer Science 2011-03-17 v1 Quantum Physics

Abstract

Graphical calculi for representing interacting quantum systems serve a number of purposes: compositionally, intuitive graphical reasoning, and a logical underpinning for automation. The power of these calculi stems from the fact that they embody generalized symmetries of the structure of quantum operations, which, for example, stretch well beyond the Choi-Jamiolkowski isomorphism. One such calculus takes the GHZ and W states as its basic generators. Here we show that this language allows one to encode standard rational calculus, with the GHZ state as multiplication, the W state as addition, the Pauli X gate as multiplicative inversion, and the Pauli Z gate as additive inversion.

Keywords

Cite

@article{arxiv.1103.2812,
  title  = {The GHZ/W-calculus contains rational arithmetic},
  author = {Bob Coecke and Aleks Kissinger and Alex Merry and Shibdas Roy},
  journal= {arXiv preprint arXiv:1103.2812},
  year   = {2011}
}

Comments

In Proceedings HPC 2010, arXiv:1103.2268

R2 v1 2026-06-21T17:39:28.840Z