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Large Scale Energy Efficient Sensor Network Routing Using a Quantum Processor Unit
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Quantum driving and work.

J Salmilehto1, P Solinas2, M Möttönen3

  • 1QCD Labs, COMP Centre of Excellence, Department of Applied Physics, Aalto University, P.O. Box 13500, FI-00076 Aalto, Finland.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|October 30, 2014
PubMed
Summary
This summary is machine-generated.

Quantum mechanics requires new definitions for control and work. This study quantifies quantum work and heat flows, revealing how quantum back action modifies established work distribution identities.

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Area of Science:

  • Quantum mechanics
  • Thermodynamics
  • Quantum information science

Background:

  • Experimental advancements in quantum systems necessitate a re-evaluation of classical concepts.
  • Traditional thermodynamics and control theory may not fully capture quantum phenomena.
  • Understanding quantum work and heat flow is crucial for developing quantum technologies.

Purpose of the Study:

  • To identify and quantify work injected into quantum systems during general quantum-mechanical driving protocols.
  • To analyze heat flows associated with these quantum driving protocols.
  • To investigate the impact of quantum back action and system-drive correlations on work distributions.

Main Methods:

  • Development of a theoretical framework for analyzing work and heat in quantum systems.
  • Application of quantum mechanics principles to describe system-drive interactions.
  • Derivation of equations for work and heat flow under general quantum driving.
  • Analysis of the Bochkov-Kuzovlev identity in the context of quantum correlations.

Main Results:

  • A generalized framework for quantum work and heat flow is established.
  • Classical results for work are recovered as a special case of the quantum framework.
  • Quantum back action leads to non-trivial modifications of the exclusive work distribution identity.
  • System-drive correlations arising from quantum effects are identified as the cause of these modifications.

Conclusions:

  • Quantum mechanical driving protocols exhibit fundamental differences compared to classical protocols.
  • The study highlights the importance of quantum correlations and back action in quantum thermodynamics.
  • This work provides a foundation for understanding control and work in the quantum regime.