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Shadow Theory

Technical Companion: Approximation and Accounting for Quantum Sources

Current-status overlay

Jeremy RodgersSection 9 of 10Original PDF ↗

Current-status overlay

The analytic and rational encoded-pair constructions remain valid sufficient examples, not the best current qutrit feasibility endpoint. The exact dimension-three interval now starts at λ† = 1 −

17/4. For complete channels retaining final memory, the current universal bounds are 48, 145, 437 3n−4; the explicit mixed source at .99 attains 50, 152, 456 3n−4. Earlier specified-channel costs remain valid for those channels, but are not universal process minima. The current one-step qutrit optimum is nine on the certified high-noise interval. These overlays identify the current process-wide status; historical tables continue to describe their explicitly specified channels rather than different updated channels. 71 −17 √
Technical passage, source page 25.
Searchable transcription
17/4. For complete channels retaining final memory, the current universal bounds are
48, 145, 437 3n−4; the explicit mixed source at .99 attains 50, 152, 456 3n−4. Earlier specified-channel
costs remain valid for those channels, but are not universal process minima. The current one-step qutrit
optimum is nine on the certified high-noise interval. These overlays identify the current process-wide
status; historical tables continue to describe their explicitly specified channels rather than different
updated channels.
71 −17
√
q
Source page 25.
Searchable transcription
q
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