quantum computing - color forth

> EPR states generally have local incoherence with non-local
> coherence or phase locking. That is the local phases are random,
> but the relative nonlocal phase between the interfering histories
> is not random.
>> 12> = (1/2)^1/2[1+>2+> + 1->2->]
>> here the nonlocal relative phase lock is at 0 degrees.
>> In this one>> 12> = (1/2)^1/2[1+>2+> - 1->2->]
>> The nonlocal phase is 180 degrees.
>> In general
>> 12> = (1/2)^1/2[1+>2+> +e^i(nonlocal phase) 1->2->]
>> But in all cases the local Born probabilities are 1/2, i.e.
> complete local phase randomness or local incoherence.>