Reviews provide the deeper, source-centered analysis that a Briefing intentionally does not attempt. Every Review makes its scope explicit as either a Paper Review or a Topic Review.
Paper Review
A Paper Review examines one paper, preprint, or tightly bounded research contribution in substantially more detail than a Briefing introduction. Companion code, data, announcements, or closely linked versions may be included when they belong to the same contribution. The review asks what the work establishes, how the evidence supports the claim, which assumptions and methods it uses, how it compares with relevant baselines, and where its conclusions stop.
Main text begins with an editorially labeled Introduction and then keeps the reviewed paper’s own section titles in source order. This lets a reader move between the paper and the Review without first translating the source into a generic editorial outline. Evidence checks, interpretation, comparisons, and limits are placed with the corresponding part of the paper. An optional Supplementary information section may explain source-supplement derivations, implementation details, additional tables, or convergence checks; it is omitted when no such detail materially helps the Review, and it never replaces central evidence or important limits in Main text. Additional editorial sections are adopted only when real Reviews show that they have a stable role.
Topic Review
A Topic Review reconstructs a research topic, theory, or research program across multiple contributions and relevant Concepts. It explains the common problem, conceptual framework, development across papers, major results, disagreements or competing approaches, limitations, and open questions. Entanglement bootstrap as a research program belongs here; a detailed source-centered examination of one entanglement-bootstrap paper belongs in Paper Review, while a concise date-centered introduction to that paper may remain a Briefing.
The Paper Review/Topic Review distinction concerns the object of review, not which subtype is longer. Both are deeper analytical formats than a Briefing. Neither label by itself claims peer review, a systematic review, or a meta-analysis.
Browse Reviews to find both types. Research practice describes the shared source-checking and approval workflow.