In theoretical computer science, almost wide probabilistic polynomial-time (AWPP) is a complexity class contained in PP defined via GapP functions. The class often arises in the context of quantum computing.

AWPP contains the complexity class BQP (bounded-error quantum polynomial time), which contains the decision problems solvable by a quantum computer in polynomial time, with an error probability of at most 1/3 for all instances. In fact, it is the smallest classical complexity class that upper bounds BQP. Furthermore, it is contained in the APP class.

References

    General

    • Lance Fortnow; John Rogers (1998). "Complexity Limitations on Quantum Computation" (PDF). arXiv:cs/9811023. Bibcode:1998cs.......11023F. {{cite journal}}: Cite journal requires |journal= (help) Provides information on the connection between various complexity classes.
    • Stephen A. Fenner (June 19, 2002). "PP-lowness and a simple definition of AWPP". Electronic Colloquium on Computational Complexity. {{cite journal}}: Cite journal requires |journal= (help) Definition of AWPP and connection to APP and PP.
    • Lance Fortnow; John D. Rogers (November 12, 1998). "Complexity limitations on quantum computation". arXiv:cs/9811023. Proof of BPQ in AWPP.
    • "Gap-definable counting classes" by S. Fenner, L. Fortnow, and S. Kurtz from the Journal of Computer and System Sciences. Pages 116–148, 1994, issue 48. Contains definitions.
    • "An oracle builder's toolkit" by S. Fenner, L. Fortnow, S. Kurtz, and L. Li. in 8th IEEE Structure in Complexity Theory Conference Proceedings. Pages 120–131, 1993. Contains definitions.
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