How the third law limits our knowledge about quantum systems

Staff - Faculty of Informatics

Date: 20 February 2019 / 13:30 - 14:15

USI Lugano Campus, room A-34, Red building (Via G. Buffi 13)

Marcus Huber, Institute for Quantum Optics and Quantum Information Vienna, Austria

The third law of thermodynamics can be phrased as an impossibility of cooling any physical system to absolute zero temperature. The projection postulate of quantum mechanics, however, predicts pure post-measurement states in idealised settings. We show how a self-contained treatment connects the two concepts and extends the impossibility of cooling to the impossibility of perfect measurements or Landauer erasure with finite thermodynamic resources.

Marcus Huber is a group leader at IQOQI in Vienna. He has received his PhD from University of Vienna.
After, he has been a Marie-Curie Fellow at the University of Bristol, and held positions of the Universities of Geneva and the Universitat Autonoma di Barcelona.

Host: Prof. Stefan Wolf