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New controls can stretch, blur and even reverse quantum time flow
- March 20, 2026 at 4:40 PM
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In new research published in Physical Review X, scientists have designed quantum control protocols that generate processes more consistent with time flowing backward than forward. The protocols—techniques to control quantum systems—modify a quantum system's "arrow of time," the concept of time as moving in one forward direction. The work opens up possibilities for energy extraction from quantum systems and for quantum state preparation.
Originally published at Phys.org