A first quantum revolution started decades ago and has already brought quantum technologies in our everyday life. Chips for computers and smart-phone, systems for medical imaging (Nuclear Magnetic Resonance, Positron Emission Tomography), LED and lasers, etc. are all based on technologies exploiting the quantum mechanics principles.

Today a second revolution seems to be underway: in fact, there is an impressive new grow of interests for quantum, with several investments from public and private organizations worldwide targeting new horizons of applications.  In particular, there are three quantum phenomena, well known and well tested in Physics, which are not fully exploited yet by Industry. These phenomena are superposition, entanglement, and measurement:

• Superposition concerns the property of quantum objects to stay in linear combination of multiple states until they are observed.
• Entanglement is defined as the possibility that two or more quantum objects to stay intrinsically linked, into an intertwined composite state, regardless of how far apart the objects are from one another.
• Measurement regards the collapse and disruption of a quantum state from coherent probabilistic superposition state into a discrete on.