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Quantum Engine Combines Power with Ideal Efficiency ⚡ экспресс

Original: "Approaching Carnot Efficiency at Finite Power in an Experimentally Feasible Quantum Heat Engine"
arXiv:2607.08713 · 2026-07-09 · CC BY 4.0 · ⏱ 1 min · Quantum Physics Statistical Mech
Physicists have proposed a superconducting circuit where multiple quantum systems, working together as a single coordinated mechanism, almost reach the theoretical maximum of efficiency without losing power.
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Ordinary engines: more power means lower efficiency. A quantum trick with collective amplification breaks this rule. A superconducting chip promises engines that are almost ideal and yet powerful. A step toward lossless energy.

🎯 In household appliances, up to 60–70% of energy is lost as heat due to friction. In quantum systems, this friction vanishes: instead, collective amplification kicks in, allowing close to 100% of the theoretically possible efficiency. Such an engine could run almost loss-free.

\eta = 1 - \frac{T_c}{T_h}
Carnot efficiency: the maximum fraction of heat converted into work, where T_c is the cold reservoir temperature and T_h is the hot reservoir temperature.
Scientists
Christian DopplerD. B. McLaughlinDidier QuelozMichel MayorR. A. RossiterAlbert Einstein
Tags
entropy speed of light photometry
Laws
second law of thermodynamicsDoppler effectprinciple of constancy of the speed of lightBekenstein-Hawking entropymass–energy equivalenceMaxwell's equations
Original: arXiv:2607.08713 · CC BY 4.0 · bridge42worlds