Speaker
Description
Italy has designed a national strategy on quantum technologies including quantum computation within the more general European framework. Superconducting circuits have been up to now the most successful platform worldwide to build a quantum computer, being developed and used by major international companies since early stages. University of Napoli (UNINA) has a long-standing experience on superconducting electronics and on its key device i.e. the Josephson junction, and in 2024 has assembled the first quantum computer in Italy “Partenope” based on a 25-qubits processor produced by Quantware recently expanded with a 64-qubits QPU. 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, including material science issues, 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.