English

Two-message quantum interactive proofs are in PSPACE

Computational Complexity 2009-05-11 v1 Quantum Physics

Abstract

We prove that QIP(2), the class of problems having two-message quantum interactive proof systems, is a subset of PSPACE. This relationship is obtained by means of an efficient parallel algorithm, based on the multiplicative weights update method, for approximately solving a certain class of semidefinite programs.

Cite

@article{arxiv.0905.1300,
  title  = {Two-message quantum interactive proofs are in PSPACE},
  author = {Rahul Jain and Sarvagya Upadhyay and John Watrous},
  journal= {arXiv preprint arXiv:0905.1300},
  year   = {2009}
}

Comments

24 pages

R2 v1 2026-06-21T12:59:47.113Z