Hier geht's um "coherence" bei Zimmertemperatur.
https://phys.org/news/2016-10-quantu...coherence.html
Zitat:
The scientists demonstrated the mechanism in composite systems whose subsystems are all affected by decoherence, yet the overall composite system maintains its quantum coherence for as long as desired.
"The trick lies in the fact that local decoherence acts in a preferred direction, which is perpendicular to the one in which coherence is measured," Adesso explained. "Consequently, the resulting quantum states are overall degraded by such noise, but their observed coherence remains unaffected during the dynamics if the initial conditions are suitably chosen."
The researchers implemented the method using set-ups that involve room-temperature liquid-state nuclear magnetic resonance (NMR) quantum simulators, and demonstrated the effect in two- and four-qubit ensembles.
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