Quantum technologies based on open quantum systems
Studies of technologies based on quantum systems have gained immense importance in recent years, owing to the current experimental progress in control of quantum systems. I will talk about technologies based on open quantum systems. I will show how efficiencies of quantum heat engines powered by squeezed thermal reservoirs can surpass the Carnot limit, without violating the second law of thermodynamics. I will also talk about dynamical control of quantum systems, which can lead to quantum advantage in quantum heat machines, as well as enable us to perform high-precision low-temperature thermometry close to the absolute zero.