Entangling power and fidelity diagnostics for bipartite quantum channels
Marcin Rudziński, Gianluigi Tartaglione, Karol Życzkowski
· 0 citations
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Preprint
Sep 2026
Error accumulation in dissipative quantum circuits
Present-day quantum processors are open systems in which dissipation and decoherence degrade the information carried by a quantum state as it propagates through a circuit. We study this degradation in dissipative random quantum circuits, modeling each two-qubit gate as a diluted unitary that interpolates between the in...
Nadir Samos-Sáenz de Buruaga, Rodrigo M. C. Pereira, Karol Życzkowski et al.
· 1 citation
Preprint
Aug 2026
Spin-coherent quantum designs
Coherent states bridge the gap between quantum and classical physics, but their overcomplete and nonorthogonal nature makes it difficult to identify the minimal discrete set needed to reconstruct quantum information. Finite spin-coherent tomography and discrete coherent-state operator bases are known, but here we addre...
Marcin Rudziński, A. Goldberg, A. B. Klimov et al.
· 0 citations