Manuscript Oai280-C@1 · Oai280-C.tex · section · 7d44b8c0

Triple patch decoders

One connected two-cell encoding › Triple patch decoders · lines 826–837

For all four exterior legs of a cell one may instead use the complete decoder

D_{4} (σ) = Tr_{e} (F^{†} σ F) + Tr ((I - F F^{†}) σ) I_{L} /2.

The second term completes the channel outside the isometry range.

Displayed formulas in this passage

unlabeled · line 830
$D_{4} (σ) = Tr_{e} (F^{†} σ F) + Tr ((I - F F^{†}) σ) I_{L} /2.$