Speaker
Description
Superconducting circuits have been up to now the most successful platform to build a quantum computer, being developed and used by major international companies since early stages. Napoli has a long-standing experience on superconducting electronics and on its key device i.e. the Josephson junction, and has assembled the first quantum computer in Italy “Partenope” based on a 25-qubits processor produced by Quantware aiming at a QPU with 64-qubits in the close future. Partenope has been the platform where to create a solid expertise for the characterization, calibration, benchmarking and implementation of subregisters of QPUs and to focus on all hardware aspects including control and read out. A full control of Partenope also due to a comprehensive handling of the physics behind including its noise issues, such as decoherence, error in the gate implementation, readout error, has allowed the run of various algorithms, paving the way more and more towards an open-source quantum computing platform. A profound understating of all the physics of the hardware has promoted progress in developing independent pathways with innovative solutions for novel quantum components. These range from a new type of qubit based on ferromagnetic Josephson junctions and a novel tunable qubits coupler to qubit readout based on Josephson digital phase detectors and to novel schemes of microwave demultiplexer. The path from the physics of the hardware to operation of a quantum computer will be the focus of the contribution.
