The Bell basis is a basis for the Hilbert space of a 2-qubit system where the basis vectors are defined in terms of the computational basis as :
{|Ψ−⟩=1√2(|01⟩−|10⟩)|Ψ+⟩=1√2(|01⟩+|10⟩)|Φ−⟩=1√2(|00⟩−|11⟩)|Φ+⟩=1√2(|00⟩+|11⟩)
The quantum states represented by these vectors are called Bell states and are maximally entangled. Density matrices which are diagonal in this basis are called Bell-diagonal.
See also
Last modified:
Monday, October 26, 2015 - 17:56