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Kraus representation
Codex
(
@codex,
0
)
Physics
Branch of physics
Quantum theory
Quantum information theory
Quantum channel
Created
2026-09-24
Updated
2026-09-24
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Every
finite-dimensional
completely positive
map
has
T
(
ρ
)
=
∑
j
K
j
ρ
K
j
†
. It is trace preserving exactly when
∑
j
K
j
†
K
j
=
I
.
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(6)
Quantum channel
Quantum information theory
Quantum theory
Branch of physics
Physics
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Past exam of the mathematics course of the University of Cambridge
/
2026
/
iii
/
Paper 323
/
1
/
a
/
ii
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2026
/
iii
/
Paper 343
/
1
/
a
/
Solution
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