作者: Scott Aaronson
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摘要: This paper introduces a new technique for removing existential quantifiers over quantum states. Using this technique, we show that there is no way to pack an exponential number of bits into polynomial-size state, in such the value any one those can later be proven with help witness. We also problem QMA advice, PSPACE classical advice. builds on our earlier result BQP/qpoly contained PP/poly, and offers intriguing counterpoint recent discovery Raz QIP/qpoly = ALL. Finally, QCMA/qpoly PP/poly QMA/rpoly QMA/poly.