Quantum One-Way Communication is Exponentially Stronger Than Classical Communication
نویسندگان
چکیده
In STOC 1999, Raz presented a (partial) function for which there is a quantum protocol communicating only O(log n) qubits, but for which any classical (randomized, bounded-error) protocol requires poly(n) bits of communication. That quantum protocol requires two rounds of communication. Ever since Raz’s paper it was open whether the same exponential separation can be achieved with a quantum protocol that uses only one round of communication. Here we settle this question in the affirmative.
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عنوان ژورنال:
- Electronic Colloquium on Computational Complexity (ECCC)
دوره 17 شماره
صفحات -
تاریخ انتشار 2010