Quantum theory underpins much modern technological development and sets the ultimate limits on the performance of devices—the best conceivable performance towards which scientists and engineers can ...
However, even though \({\Lambda }_{t}^{-1}\) is well-defined and Λ t,0, Λ s,0 are completely positive (CP), the map Λ t,s does not need to be CP. If for any t > s > 0, Λ t,s is CP, then the family of ...
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