QSZK ⊆ QIP

QSZK is contained in QIP.

Statement

Migrated verbatim from quantum-statistical-zero-knowledge § Known relationships:

• $\mathbf{QSZK}\subseteq \mathbf{QIP}=\mathbf{PSPACE}$: quantum statistical zero-knowledge is contained in quantum interactive proofs, which equals PSPACE.

Notes

source: folklore: the claim carried no citation on the page it was migrated from, and none was invented.

class: unstated: no citing page says which notion of reduction is meant. Recording a class the wiki does not state would add a claim.

class: free because a containment between complexity classes is proved by any argument at all; the reduction-class axis does not discriminate here, and unstated would wrongly suggest the information is missing.

Recorded during migration and not fixed — these are claims about the source text, not changes to it:

• Uncited (the whole bullet carries no citation).
• QIP is not wikilinked although content/Complexity/quantum-interactive-proofs.md exists.