Something is said to **bipartite** if it consists of two distinct parts.

In quantum information science it is often quantum systems that are shared between two parties, usually spatially separated and called Alice and Bob.

If Alice's subsystem is described by the Hilbert space *H*_{A} and Bob's is described by *H*_{B}, the compound bipartite system is described by the tensor product of the two spaces, *H*_{A} ⊗ *H*_{B}. State vectors and density operators on *H*_{A} ⊗ *H*_{B} are called *bipartite quantum states*.

### See also

### External links

- Bipartite in Wiktionary

Category:Handbook of Quantum Information Category:Mathematical Structure

## Last modified:

Monday, October 26, 2015 - 17:56