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quant-ph2026
Quantum theory of a three-photon Kerr parametric oscillator
Alessandro Bruno, Patrick P. Potts, Alexander Grimm +1
We investigate the quantum properties of a nonlinear Kerr oscillator driven by a three-photon pump. We derive both exact and approximate analytical expressions for the ground state…
quant-ph2025
Enhancing Kerr-Cat Qubit Coherence with Controlled Dissipation
Francesco Adinolfi, Daniel Z. Haxell, Alessandro Bruno +4
Quantum computing crucially relies on maintaining quantum coherence for the duration of a calculation. Bosonic quantum error correction protects this coherence by encoding qubits i…
quant-ph2025
Implementation and readout of maximally entangled two-qubit gates quantum circuits in a superconducting quantum processor
Viviana Stasino, Pasquale Mastrovito, Carlo Cosenza +8
Besides noticeable challenges in implementing low-error single- and two-qubit quantum gates in superconducting quantum processors, the readout technique and analysis are a key fact…