Despite being over 100 years old, quantum physics is a young theory. It can therefore still hold some surprises for us. After the first quantum revolution, advances in understanding the theory and the technological developments that it led to have given rise to a new wave of applications based on the study of physical systems from a new point of view: any physical system contains information and when it interacts with another, an exchange occurs. Thanks to this approach, technologies such as computers, communications and quantum sensors have been developed, which promise to achieve tasks and results that traditional systems are not able to achieve and which open up a future of new possibilities.