Outcome independence (source code)

= Outcome independence

<Outcome independence> requires $P(A,B\mid a,b,\lambda)=P(A\mid a,b,\lambda)P(B\mid a,b,\lambda)$. It says that, once settings and the proposed complete state are fixed, learning the distant outcome does not change the local outcome probability. Combining it with <parameter independence> gives Bell factorization. Entangled quantum states generally fail outcome independence even though their observable marginal distributions obey <quantum no-signalling>.