# Phase Gadget Synthesis for Shallow Circuits

@inproceedings{Cowtan2019PhaseGS, title={Phase Gadget Synthesis for Shallow Circuits}, author={A. Cowtan and Silas Dilkes and R. Duncan and W. Simmons and Seyon Sivarajah}, booktitle={QPL}, year={2019} }

We give an overview of the circuit optimisation methods used by tket, a compiler system for quantum software developed by Cambridge Quantum Computing Ltd. We focus on a novel technique based around phase gadgets, a family of multi-qubit quantum operations which occur naturally in a wide range of quantum circuits of practical interest. The phase gadgets have a simple presentation in the ZX-calculus, which makes it easy to reason about them. Taking advantage of this, we present an efficient… CONTINUE READING

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