2 papers
quant-ph2026
When More Becomes Less: Topology-Reversed Three-Qubit Gate Performance on IBM Quantum Processors
Simona K. Grigorova, Stancho S. Stanchev, Nikolay V. Vitanov
The exact Toffoli gate admits a six-CX decomposition, denoted by , that is optimal under unrestricted two-qubit connectivity. On a linear three-qubit topology, however, $CCX…
quant-ph2026
Phase-Altered Interleaved Randomized Benchmarking for Compiled Quantum Gates
Simona K. Grigorova, Nikolay V. Vitanov, Boyan T. Torosov
Interleaved randomized benchmarking (IRB) provides a scalable estimate of a gate's error rate, but its standard guarantees require the interleaved gate to be Clifford~\cite{Magesan…