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quant-ph2025
Characterization of permutation gates in the third level of the Clifford hierarchy
Zhiyang He, Luke Robitaille, Xinyu Tan
The Clifford hierarchy is a fundamental structure in quantum computation whose mathematical properties are not fully understood. In this work, we characterize permutation gates --…
quant-ph2025
Unitary synthesis with fewer T gates
Xinyu Tan
We present a simple algorithm that implements an arbitrary -qubit unitary operator using a Clifford+T circuit with T-count . This improves upon the previous…
quant-ph2024
Permutation gates in the third level of the Clifford hierarchy
Zhiyang He, Luke Robitaille, Xinyu Tan
The Clifford hierarchy is a fundamental structure in quantum computation, classifying unitary operators based on their commutation relations with the Pauli group. Despite its signi…