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Open Quantum Systems Decoherence Quantum Thermodynamics

Channels, measurements and post-selection in quantum thermodynamics

arXiv
Authors: Tom Purves, Tony Short

Year

2020

Paper ID

21320

Status

Preprint

Abstract Read

~2 min

Abstract Words

68

Citations

N/A

Abstract

We analyse the benefit, in terms of extracting work, of having a single use of a quantum channel or measurement in quantum thermodynamics. This highlights a connection between unital and catalytic channels, and some subtleties concerning the conditional work cost of implementing a measurement given that a certain result was obtained. We also consider post-selected measurements, and show that any non-trivial post-selection leads to an unbounded work benefit.

Why This Paper Matters

  • This paper contributes to the Quantum Thermodynamics research area in the Quantum Articles archive.
  • It adds a 2020 reference point for readers tracking recent quantum research.
  • We analyse the benefit, in terms of extracting work, of having a single use of a quantum channel or measurement in quantum thermodynamics.

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