The Time Machine Factory [unspeakable, speakable] on Time Travel - TMF2024

The information-theoretic foundation of thermodynamic work extraction

23 Sept 2024, 14:20

35m

Vallauri Hall (INRiM historical building, Turin)

talk Session V. Teleportation, entanglement and decoherence

Speaker

Chiara Marletto (University of Oxford)

Description

I will present a general theorem stating that if one can extract diffrent amounts of work deterministically from from a system prepared in any one of a set of states, then those states must be perfectly distinguishable from one another. This result is formulated independently of scale and of particular dynamical laws; it also provides a novel connection between thermodynamics and information theory, established via the law of conservation of energy rather than via the second law of thermodynamics. I will briefly discuss the implications of this result for the theory of von Neumann's universal constructor and for the recently proposed witnesses of non-classicality in hybrid quantum systems.

Presentation materials

Marletto_Turin_Time_Machine_2024.pdf