Quantum zero-error algorithms cannot be composed
نویسندگان
چکیده
منابع مشابه
Quantum Zero-Error Algorithms Cannot be Composed
We exhibit two black-box problems, both of which have an efficient quantum algorithm with zero-error, yet whose composition does not have an efficient quantum algorithm with zero-error. This shows that quantum zero-error algorithms cannot be composed. In oracle terms, we give a relativized world where ZQP 6= ZQP, while classically we always have ZPP = ZPP.
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ژورنال
عنوان ژورنال: Information Processing Letters
سال: 2003
ISSN: 0020-0190
DOI: 10.1016/s0020-0190(03)00254-0