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arXiv · 1407.1361

Classical simulation of Yang-Baxter gates

Gorjan Alagic·Aniruddha Bapat·Stephen Jordan
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Abstract

A unitary operator that satisfies the constant Yang-Baxter equation immediately yields a unitary representation of the braid group B n for every $n \ge 2$. If we view such an operator as a quantum-computational gate, then topological braiding corresponds to a quantum circuit. A basic question is when such a representation affords universal quantum computation. In this work, we show how to classically simulate these circuits when the gate in question belongs to certain families of solutions to the Yang-Baxter equation. These include all of the qubit (i.e., $d = 2$) solutions, and some simple families that include solutions for arbitrary $d \ge 2$. Our main tool is a probabilistic classical algorithm for efficient simulation of a more general class of quantum circuits. This algorithm may be of use outside the present setting.

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Gorjan Alagic, Aniruddha Bapat, Stephen Jordan. 2014-07-05. Classical simulation of Yang-Baxter gates. https://doi.org/10.4230/lipics.tqc.2014.161

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