Publications de Marco Scigliuzzo

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The vacuum (i.e., the ground state) of a system in ultrastrong light-matter coupling contains particles that cannot be emitted without any dynamical perturbation and is thus called virtual. We propose a protocol for inducing and observing real mechanical e ...

Quantum metrology, a cornerstone of quantum technologies, exploits entanglement and superposition to achieve higher precision than classical protocols in parameter-estimation tasks. When combined with critical phenomena such as phase transitions, the diver ...

Superconducting microwave metamaterials offer enormous potential for quantum optics and information science, enabling the development of advanced quantum technologies for sensing and amplification. In the context of circuit quantum electrodynamics, such me ...

Landau–Zener–Stückelberg–Majorana (LZSM) interference occurs when qubit parameters are periodically modulated across avoided level crossings. We explore this phenomenon in nonlinear multilevel bosonic systems, where interference is influenced by multiple e ...

Vacuum-gap capacitors have recently attracted significant interest in superconducting circuit platforms due to their compact design and exceptionally low dielectric losses in the microwave regime. Their intrinsic ability to support mechanical vibrational m ...

The reproducibility of qubit parameters is a challenge for scaling up superconducting quantum processors. Signal cross talk imposes constraints on the frequency separation between neighboring qubits. The frequency uncertainty of transmon qubits arising fro ...

Collective phenomena arise from interactions within complex systems, leading to behaviors absent in individual components. Observing quantum collective phenomena with macroscopic mechanical oscillators has been impeded by the stringent requirement that osc ...

Niobium nitride (NbN) is a particularly promising material for quantum technology applications, as it shows the degree of reproducibility necessary for large-scale superconducting circuits. We demonstrate that resonators based on NbN thin films present a o ...

Superconducting qubits are among the most advanced candidates for achieving fault-tolerant quantum computing. Despite recent significant advancements in the qubit lifetimes, the origin of the loss mechanism for state-of-the-art qubits is still subject to i ...

Marco Scigliuzzo

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Phonon pumping by modulating the ultrastrong vacuum

Criticality-Enhanced Quantum Sensing with a Parametric Superconducting Resonator

High kinetic inductance cavity arrays for compact band engineering and topology-based disorder meters

Landau–Zener without a qubit: multiphoton sidebands interaction and signatures of dissipative quantum chaos

Compact Superconducting Vacuum-gap Capacitors with Low Microwave Loss and High Mechanical Coherence for Scalable Quantum Circuits

Mitigation of frequency collisions in superconducting quantum processors

Quantum collective motion of macroscopic mechanical oscillators

NbN films with high kinetic inductance for high-quality compact superconducting resonators

Mechanically induced correlated errors on superconducting qubits with relaxation times exceeding 0.4 ms