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arXiv · 2311.12510

A T-depth two Toffoli gate for 2D square lattice architectures

Alexandru Paler·Evan E. Dobbs·Joseph S. Friedman
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Abstract

We present a novel Clifford+T decomposition of a Toffoli gate. Our decomposition requires no SWAP gates in order to be implemented on 2D square lattices of qubits. This decomposition enables shallower, more fault-tolerant quantum computations on both NISQ and error-corrected architectures. We present the derivation of the circuit, and illustrate the qubit mapping on a Sycamore-like architecture.

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Alexandru Paler, Evan E. Dobbs, Joseph S. Friedman. 2023-11-21. A T-depth two Toffoli gate for 2D square lattice architectures. https://doi.org/10.1145/3611315.3633270

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