Radiation carrying Orbital Angular Momentum (OAM) formalized in the late 20th century opened important perspectives in both classical and quantum domains. The enormous advantage is due to the additional degree of freedom characterized by an unlimited number of states that can be encoded using single photons. Generally, detection of OAM states in quantum experiments is performed using direct...
Simulating the real-time dynamics of gauge theories represents a paradigmatic use case to test the hardware capabilities of a quantum computer, since it can involve non-trivial input states’ preparation, discretized time evolution, long-distance entanglement, and measurement in a noisy environment. We implemented an algorithm to simulate the real-time dynamics of a few-qubit system that...
Quantum Sensing is a rapidly expanding field with applications in Fundamental Physics, including Dark Matter (DM) search. Recent progress in superconducting qubits has enabled enhanced sensitivity and reduced dark count rates in microwave photon detection experiments. The INFN Qub-IT project aims to develop an itinerant qubit-based single-photon counter able to exploit Quantum Non-Demolition...
We investigate the coherent energy transfer between two quantum systems mediated by a quantum bus. In particular, we consider the energy transfer process between two qubits, and how it can be influenced by using a resonant cavity as a mediator. Inspecting different figures of merit and considering both on and off-resonance configurations, we characterize the energy transfer performances. We...
