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Araki–Lieb inequality
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Physics
Branches of physics
Quantum theory
Density matrix
Von Neumann entropy
Subadditivity of Von Neumann entropy
Created
2026-09-24
Updated
2026-09-24
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For
a
bipartite
density operator
ρ
A
B
,
∣
S
(
ρ
A
)
−
S
(
ρ
B
)
∣
≤
S
(
ρ
A
B
)
.
(1)
Ancestors
(7)
Subadditivity of Von Neumann entropy
Von Neumann entropy
Density matrix
Quantum theory
Branches of physics
Physics
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Dimension bound for quantum conditional entropy
Past exam of the mathematics course of the University of Cambridge
/
2001
/
iii
/
Paper 25
/
3
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2005
/
iii
/
Paper 37
/
1
/
b
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2009
/
iii
/
Paper 50
/
3
/
b
/
Solution
Past exam of the mathematics course of the University of Cambridge
/
2026
/
iii
/
Paper 323
/
4
/
c
/
v
/
Solution
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