The talk will begin with a very quick pedagogical overview of cavity QED, circuit QED, and the ultra-strong coupling limit of these. Afterwards, present some more recent results, in the context of quantum nonlinear optics of qubits and resonators, coupled in various different configurations, and these qubits and resonators exchanging energy in various ways.
Recent cyber-attacks to national networks have highlighted the importance of developing an Italian cybersecurity infrastructure where QKD could play an important role by enabling the generation of secure cryptographic keys. The QuantumFuture group is involved in various research projects (eg., OPENQKD) aimed at developing fully-functioning and innovative QKD systems able to operate in the...
In multiparameter quantum metrology, asymptotic incompatibility (AI) is a recently introduced measure quantifying the quantumness of statistical models. Starting from its definition, we found that it is possible to set an upper bound on the maximum number of asymptotic compatible parameters in the statistical model. We numerically investigate the AI for the full tomography of $d$-dimensional...
Quantum states of light represent a useful tool for encoding and transmitting information.
The main obstacle to the successful implementation of communication protocols, especially over long distances, is given by the losses and noise sources affecting the transmission channels, which can irreversibly change the statistical properties of the employed nonclassical states of light.
At variance...
