Author

D. Z. Rossatto

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Preprint Sep 2026

Occupation-selective photon-pair interactions in a flux-pumped SQUID resonator

Flux-pumped Josephson circuits provide a versatile platform for parametric photon generation and multimode bosonic control. We identify an occupation-conditioned pair interaction that arises when two harmonic normal modes participate in the same driven SQUID coordinate. We consider a degenerate pair process in which tw...

L. N. Ferreira, D. Z. Rossatto, A. D. de Castro et al. · 0 citations

Preprint Aug 2026

Quantum phase estimation for nondestructive monitoring and Wigner tomography of bosonic fields

Quantum phase estimation is usually introduced as an algorithmic primitive for extracting eigenphases of unitary operators. Here we show that, when implemented through a dispersive light-matter interaction, it can also be used as a nondestructive measurement tool for bosonic fields. We consider a bosonic mode coupled t...

Lucas R. S. Santos, C. M. Diniz, D. Z. Rossatto et al. · 0 citations

Preprint Aug 2026

Preparation of Large Fock States in Resonators with High Probability

Large Fock states are important resources for bosonic quantum information and quantum-enhanced metrology, but preparing them with high probability at large excitation numbers remains challenging, as deterministic methods become increasingly control-intensive, while measurement-based approaches typically suffer from low...

Lucas R. S. Santos, C. M. Diniz, D. Z. Rossatto et al. · 1 citation