Disorder as an Ally: Quantum Memory ⚡ экспресс
Original: "Emergent Decoherence Dynamics in Doubly Disordered Spin Networks"
Physicists have discovered that disorder can protect quantum information, not destroy it.
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Disorder, which usually spoils everything, can in the quantum world extend the life of fragile information. Scientists found a way to tame chaos and create long-lived memory cells. Quantum memories are becoming reality.
🎯 At room temperature, such quantum states decay in milliseconds, but in the described experiment, the lifetime grew hundreds of times longer thanks to isolated 'pockets' in the crystal.
e^{-\sqrt{R_p t}} e^{-R_d t}
The probability that the quantum state does not decay after time t. R_p accounts for long-range magnetic couplings, R_d for slow mixing of nuclear states.