W state
Noun
Meaning
W state (plural W states)
A quantum state of three qubits which has the following shape:
|
W
⟩
=
1
3
(
|
001
⟩
+
|
010
⟩
+
|
100
⟩
)
{\displaystyle |W\rangle ={\frac {1}{\sqrt {3}}}(|001\rangle +|010\rangle +|100\rangle )}
. It is remarkable for representing a specific type of multipartite entanglement and for occurring in several applications in quantum information theory.