Dr Marcus Huber (IQOQI - Vienna): The thermodynamics of quantum measurements
Channel: Centrum Fizyki Teoretycznej PAN
Date: 2023-05-17

Dr Marcus Huber (Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences).
The thermodynamics of quantum measurements.
We take a closer look at quantum measurements through the lens of quantum thermodynamics. From this perspective, it becomes clear that the textbook description of quantum measurements is an idealised fiction that needs a lot of thermodynamic work to be approximated well. Additionally, we take a deeper look into the foundations and discuss the 'measurement equilibration hypothesis', the idea that unitary many-body dynamics can broadcast information on its path towards equilibrium, creating objectivity in an autonomous fashion. We work out conditions on the interaction Hamiltonian and structure of the problem.

‍Wednesday colloquium at CTP PAS – 2023-05-10