Development of a Superconducting Platform for the Manipulation of Quantum States in the Microwave Regime

Broadband quantum-limited microwave amplifiers with high gain are strongly requested as the first stage of amplification in many cryogenic experimental applications, spanning from quantum computation and communication, radio-astronomy, radio detection and ranging, up to axionic dark matter detection. Thanks to their non-dissipative nature, superconducting Josephson Traveling Wave Parametric Amplifiers (JTWPA) are the best candidates to fulfill this request. Beyond the purpose of quantum-limited amplification, these devices can also be exploited as a platform for multi-mode entanglement generation in the microwave domain. In this poster, we present recent progresses in INRiM’s cryogenic setup for the generation and characterization of microwave quantum signals.