Quantum Entanglement Unleashes Energy for Quantum Engines

Chinese scientists have discovered how 'entanglement' can be used as fuel for quantum engines. The breakthrough reveals that entangled photons can stay connected regardless of distance, potentially revolutionizing energy sources for computers.

Quantum engines, using lasers for transitioning particles between quantum states, have the capability to surpass classical thermodynamics limits, with efficiency over 25%. Opting for ultra-cold 40Ca+ ions in an ion trap as the working substance, researchers observed that higher ion entanglement increased mechanical efficiency, showcasing entanglement's role as 'fuel'.

With potential applications in micro-energy devices like quantum motors and batteries, the study paves the way for large-scale quantum computers powered by entanglement properties of working materials, although increasing the number of materials without compromising entanglement fidelity remains a challenge.