We are happy to announce our next seminar.
Speaker: Alessandro Candeloro (University of Milan, ITA)
When: Tuesday, 4th May 2021, 2:30PM (CET time)
Where: online (Zoom) zoom.us/my/aula.x
Title: Measurement-powered engine
Abstract:
In the quantum realm, irreversibility primarily comes from the measurement process. From a thermodynamical point of view, the latter plays a role similar to a hot source with the noticeable difference that, in this case, the fuel is not thermal but quantum. In this seminar, the concept of a measurement-fueled engine based on a single qubit will be introduced, revealing the energetic counterpart of measurement devices. Then, the measurement process will be described from a quantum perspective, considering the creation of quantum correlations between the system to measure and a quantum meter. Energy and entropy flow along this process will be studied, unveiling the microscopic origin of the measurement fuel, and proving that entanglement plays a crucial role in the fueling mechanism. These can be regarded as a new class of heat engines in which there is no thermal bath, and the only source of fuel and noise is the measurement itself.