Abstract
The study of the power and limitations of quantum computation remains a major challenge in complexity theory. Key questions revolve around the quantum complexity classes EQP, BQP, NQP and their derivatives. This paper presents new relativized worlds in which (i) co-RP ⊈ NQE, (ii) P = BQP and UP = EXP, (iii) P = EQP and RP = EXP, and (iv) EQP ⊈ ∑ P2 ⋃ ∏ P2 . We also show a partial answer to the question of whether Almost-BQP = BQP.
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Tamon, C., Yamakami, T. (2001). Quantum Computation Relative to Oracles. In: Antoniou, I., Calude, C.S., Dinneen, M.J. (eds) Unconventional Models of Computation, UMC’2K. Discrete Mathematics and Theoretical Computer Science. Springer, London. https://doi.org/10.1007/978-1-4471-0313-4_20
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DOI: https://doi.org/10.1007/978-1-4471-0313-4_20
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