Author

Ricard Puig

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Preprint Sep 2026

Testing quantum Gaussianity with constant sample complexity

Efficiently testing whether a quantum state possesses a given structure is both a fundamental and a practical task in quantum information. Among the most important structured families are Gaussian states, which underpin quantum optics and many-body physics while defining paradigmatic regimes of efficient classical simu...

Mahtab Yaghubi Rad, Ricard Puig, Saksham Hassanandani et al. · 1 citation

Preprint Sep 2026

Dissipation accelerates quantum and classical simulation of open-system dynamics

Simulating open quantum systems reveals how environmental coupling shapes relaxation, excitation transport, and the dynamics of quantum correlations. On quantum hardware, dissipative channels add operations and might seem to increase cost. However, we show that a broad class of Pauli noise, including depolarization, ca...

Armando Angrisani, Ricard Puig, Y. Teng et al. · 0 citations