Author

Apollonas S. Matsoukas-Roubeas

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Preprint Sep 2026

Generating random unitaries by products of conjugated Hamiltonian evolutions

Random unitary operations are a fundamental resource for quantum information processing, yet provably generating them with experimentally available controls remains challenging. Existing approaches often require calculating higher-order operator expectation values, relying on statistical assumptions about the experimen...

Oscar Scholin, Apollonas S. Matsoukas-Roubeas, Sathyawageeswar Subramanian · 0 citations

Preprint Oct 2026

On Information Propagation in Krylov Subspaces

Krylov subspace methods provide an efficient tool for modeling any quantum initial value problem as a one dimensional chain. A time ordered path formulation, in which the dynamical generator successively splits probability between paths, yields a speed limit within such dynamical subspaces. For power law growing Lanczo...

Pablo Martinez-Azcona, Maximilian Meyer-Moelleringhof, Adolfo del Campo et al. · 0 citations