paper

Pivoting makes the ZX-calculus complete for real stabilizers

arXiv:1307.7048 · doi:10.4204/EPTCS.171.5

Abstract

We show that pivoting property of graph states cannot be derived from the axioms of the ZX-calculus, and that pivoting does not imply local complementation of graph states. Therefore the ZX-calculus augmented with pivoting is strictly weaker than the calculus augmented with the Euler decomposition of the Hadamard gate. We derive an angle-free version of the ZX-calculus and show that it is complete for real stabilizer quantum mechanics.

In Proceedings QPL 2013, arXiv:1412.7917

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