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quant-ph2026
Existence of Kraus decomposition in infinite dimension via strongly-convergent direct process tomography
Paul E. Lammert
An algorithm is presented for Kraus decomposition of a completely positive operator over separable (countably-infinite-dimensional) Hilbert spaces, together with an elementary proo…
quant-ph2026
Notes on completely positive maps and continuous-time Markovian CP evolution. A geometry-flavored perspective
Paul E. Lammert
These notes provide a detailed and self-contained exposition of basic theory of CP maps and continuous-time Markovian evolution.The infinite-dimensional (separable) setting is hand…