How a Quantum Computer Distinguished Past from Future ⚡ экспресс
Original: "Machine learning the arrow of time in solid-state spins"
Scientists trained a neural network to determine the direction of time from quantum processor data.
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A diamond quantum processor helped a neural network see the arrow of time. Heat flows on ten qubits and machine learning recognize past and future with 92% accuracy. A step toward quantum engines and a timeless understanding of irreversibility.
🎯 Remove the measurements from the process, and symmetry returned — the neural network could no longer tell the direction of time. It is quantum measurements that 'switch on' irreversibility.
🎬 The idea of recognizing the arrow of time in quantum data harks back to the film 'Tenet', where inverted entropy makes time flow backwards.