Codex Wiki
OurBigBook.com
Site
Source code
Von Neumann entropy
Home
Physics
Branch of physics
Quantum theory
Density operator
OurBigBook.com
Words: 54
Articles: 1
The Von Neumann entropy of a density operator is
S
(
ρ
)
=
−
Tr
(
ρ
lo
g
ρ
)
.
(3)
It vanishes for a pure state and measures mixedness and quantum entanglement in reduced states.
Table of contents
54
1
Entanglement entropy
Von Neumann entropy
29
Ancestors
(5)
Density operator
Quantum theory
Branch of physics
Physics
Home
Incoming links
(2)
Solution
Solution