Author

Gabriela Wójtowicz

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Preprint Oct 2026

Generalized $m$-body mean-field projections for classical simulation of $d$-dimensional Heisenberg-picture dynamics

Classical simulation of quantum many-body dynamics is challenged by the rapid growth of operator complexity, particularly in higher dimensions where tensor-network methods become increasingly demanding. We develop state-adapted Pauli-weight propagation based on generalized $m$-body mean-field projections, which compres...

Federico Tomás B. Pérez, Gabriela Wójtowicz, Matthias Kost et al. · 0 citations

Preprint Sep 2026

State-adapted generalized mean-field projections for Pauli propagation of Heisenberg dynamics

The Heisenberg picture can make quantum many-body simulation efficient when evolved observables admit compact operator representation within low-dimensional structures. Conventional Pauli-string propagation and truncation techniques exploit this structure, but in coherent Hamiltonian dynamics their error control is oft...

Federico Tomás B. Pérez, Gabriela Wójtowicz, M. Plenio · 3 citations

Preprint Aug 2026

Robustness of spin state superpositions for noisy quantum metrology

Quantum metrology faces major challenges in noisy environments, where decoherence rapidly degrades useful quantum resources. We investigate the dynamics of the precision limits given by the quantum Fisher information (QFI) for phase estimation under spatially correlated dephasing. We characterize the dynamics of the QF...

T. B. Lantaño, Gabriela Wójtowicz, S. Huelga et al. · 0 citations