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Quantum Engines Defy Carnot Principle, Revolutionizing Energy Efficiency

1/5/2026

Summary

Story summary

Researchers at the University of Stuttgart challenge the Carnot principle by showing it does not apply to atomic-scale systems.
Their study in Science Advances shows quantum engines can surpass traditional thermal engines by exploiting quantum correlations.
Professor Eric Lutz (University of Stuttgart) and Dr. Milton Aguilar (University of Stuttgart) explain the findings and anticipate tiny, energy-efficient quantum motors for medical nanobots.
The German Science Foundation supported the research.

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Story summary

Researchers at the University of Stuttgart challenge the Carnot principle by showing it does not apply to atomic-scale systems.
Their study in Science Advances shows quantum engines can surpass traditional thermal engines by exploiting quantum correlations.
Professor Eric Lutz (University of Stuttgart) and Dr. Milton Aguilar (University of Stuttgart) explain the findings and anticipate tiny, energy-efficient quantum motors for medical nanobots.
The German Science Foundation supported the research.