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Dynamical freezing can protect quantum information for near-cosmic timescales

Phys.org Quantum Section
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⚡ Quantum Brief
Physicists discovered that "dynamical freezing" can preserve quantum information for near-cosmic timescales by shaking systems at precise frequencies, defying thermodynamic decay. The phenomenon, long theorized but poorly understood, creates a stable quantum state resistant to chaos, potentially revolutionizing error correction in quantum computing. Experiments confirm this method delays information loss far beyond previous estimates, approaching timescales comparable to the universe’s age under ideal conditions. Unlike traditional cooling techniques, dynamical freezing relies on periodic driving to "freeze" quantum states, offering a scalable alternative for protecting qubits. The breakthrough suggests future quantum devices could maintain coherence without extreme isolation, reducing reliance on error-prone correction protocols.
Dynamical freezing can protect quantum information for near-cosmic timescales

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Preserving quantum information is key to developing useful quantum computing systems. But interacting quantum systems are chaotic and follow laws of thermodynamics, eventually leading to information loss. Physicists have long known of a strange exception, called dynamical freezing, when quantum systems shaken at precisely tuned frequencies evade these laws. But how long can this phenomenon postpone thermodynamics?

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Source: Phys.org Quantum Section