On QMA Protocols with Two Short Quantum Proofs [PDF]
Francois Le Gall, Shota Nakagawa, Harumichi NishimuraThis paper gives a QMA (Quantum Merlin-Arthur) protocol for 3-SAT with two logarithmic-size quantum proofs (that are not entangled with each other) such that the gap between the completeness and the soundness is Omega(1/n polylog(n)). This improves the best completeness/soundness gaps known for NP-complete problems in this setting.View original: http://arxiv.org/abs/1108.4306
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