874 citations · 3.8k across the 136 of their papers we have counts for
131 papers
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…
Coherent excitation of a two-state system by a Lorentzian field
Aida Shiroyan, Genko S. Vasilev, Nikolay V. Vitanov
We study the coherent excitation of a two-state quantum system by a field with a Lorentzian temporal envelope and constant carrier frequency. The associated differential equation a…
Phase-Sensitive Benchmarking of Composite Quantum Gates with Chiral-Interference Circuits on Quantum Hardware
Georgi M. Aleksandrov, Nikolay V. Vitanov
We construct and experimentally implement compact gate-native circuits that simulate the state-transfer interference underlying three- and four-level chiral-resolution protocols. B…
Optimization of multistate STIRAP by pulse shaping
Julian K. Dimitrov, Nikolay V. Vitanov
We propose a pulse-shaping method for improving population transfer in multistate stimulated Raman adiabatic passage (STIRAP) with nearest-neighbour couplings only. The method exte…
Non-Clifford Benchmarking via Ensemble Feature Selection
Stancho G. Stanchev, Nikolay V. Vitanov
We propose an Ensemble Feature Selection (EFS) method for fast estimation of process infidelity of involutory multi-qubit gates, including non-Clifford targets, for which standard…
Phase-Altered Interleaved Randomized Benchmarking for Compiled Non-Clifford 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…