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Updated: Jan 23, 2026

Correlative Light- and Electron Microscopy Using Quantum Dot Nanoparticles
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Correlations as a resource in quantum thermodynamics.

Facundo Sapienza1, Federico Cerisola2,3, Augusto J Roncaglia4,5

  • 1Departamento de Física, FCEyN, Universidad de Buenos Aires, Ciudad Universitaria, 1428, Buenos Aires, Argentina.

Nature Communications
|June 9, 2019
PubMed
Summary

Correlations in physical systems reduce the energetic cost of creating states. Allowing logarithmic correlations in the asymptotic limit recovers standard free energy results, viewing correlations as a resource.

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Area of Science:

  • Quantum Information Science
  • Thermodynamics
  • Statistical Mechanics

Background:

  • Correlations in physical systems are crucial for quantum information tasks and thermodynamic transformations.
  • Creating correlations typically incurs an energetic cost.

Purpose of the Study:

  • To investigate the role of correlations in the thermodynamic process of state formation in the single-shot regime.
  • To determine if correlations can be considered a resource in thermodynamics.

Main Methods:

  • Analysis of state formation costs in the single-shot thermodynamic regime.
  • Derivation of minimum energetic costs for creating correlated states.
  • Asymptotic analysis of correlation costs.

Main Results:

  • The energetic cost of creating multiple copies of a state can be reduced by utilizing correlations.
  • Minimum costs are determined for any finite number of subsystems.
  • Logarithmic correlations in the asymptotic limit allow recovery of standard free energy results.

Conclusions:

  • Correlations can serve as a valuable resource in thermodynamic state formation.
  • The energetic cost of state formation is influenced by the presence and amount of correlations.
  • This work bridges quantum information theory and thermodynamics by quantifying the resourcefulness of correlations.