Scientists are designing 'impossible' materials that use quantum tricks to break the limits of how heat works.
March 24, 2026
Original Paper
Materials Beyond Hamiltonian Limits -- Quantum Measurement as a Resource for Material Design
arXiv · 2603.21769
The Takeaway
The Carnot limit is a fundamental physics ceiling that says no engine can ever be 100% efficient. By using the "spooky" act of quantum measurement as a physical resource, these materials could theoretically harvest energy better than any machine ever built, essentially using the act of observation as a fuel source.
From the abstract
Recent studies have identified materials and devices whose behavior lies beyond the scope of conventional electronic-structure theory. Such theories are formulated entirely in terms of Hamiltonian evolution and therefore describe only unitary dynamics and thus only a restricted class of quantum systems.In contrast, electron systems that incorporate quantum measurement as an intrinsic dynamical element undergo Hamiltonian evolution interleaved with projection-induced state updates. This unitary-p