How statement and proof provenance work
The first chip identifies the source of the statement or construction; the second identifies the source of its local proof or verification.
- Literature-sourced: the exact statement appears in a cited source; only wording and notation differ.
- AI-adapted: a semantically identical restatement of literature-sourced material, modulo indexing, notation, and boundary cases adopted by the library.
- AI-generated: a genuinely novel statement formulated by AI, with no source for the claim itself.
These labels describe origin, not correctness: citations and verification chips remain separate evidence.
QSP signal-query and phase-rotation count
Statement
A length- sequence from QSP signal matrix and ordered phase sequence has exactly signal factors and exactly phase factors , for . In the scalar QSP model the signal acts on one two-dimensional signal register. If each is provided by a named query oracle, the sequence uses exactly calls to that oracle; it makes no controlled or inverse signal calls. The oracle's work registers, implementation, and query/gate charges are those explicitly supplied with it. The phase-rotation, ordinary-gate, circuit-description, bit, and numerical-precision coordinates remain separate as in Circuit-family and computation cost model.
Facts & Assumptions
Given: A nonnegative integer , the ordered QSP product, and the declared signal-oracle and circuit-cost interfaces.
QSP signal matrix and ordered phase sequence: ; the empty product at is .
Real bounded-polynomial QSP phase synthesis: the output list contains the phase values and the target length ; phase generation is classical preprocessing.
Circuit-family and computation cost model: named oracle calls, ordinary gates, phase precision, circuit-description size, and classical computation costs are distinct coordinates; a matrix description alone gives no oracle call.
Hybrid bound for imperfect QSP phase rotations: any compiled phase or signal operator errors are bounded separately by the sum of their per-factor operator errors.
Proof
The product in [F1] contains one factor for each integer , hence exactly signal occurrences. It contains once and one for each , hence exactly phase rotations. The case has zero signal factors and the single endpoint phase .
A named signal query is invoked once for each displayed factor and no other signal call appears in the sequence; therefore the query count is exactly . The one-qubit signal matrix acts on , while any implementation work space is included only if the supplied signal interface declares it. The phase and compilation coordinates remain distinct by [F3]–[F4]; no controlled or inverse call is inferred.
Depends on
Used by
Dependency tree · two levels
42 results within two dependency steps of this one, each drawn at its shortest distance from it. An arrow runs from a result to what uses it, so the chart reads left to right and ends at this result, which carries a heavier outline. Every node is a link to that result. Click elsewhere on the chart to enlarge it.
Sources
- András Gilyén, Yuan Su, Guang Hao Low, and Nathan Wiebe, Quantum singular value transformation and beyond (standard reference, not scraped)
- Andrew M. Childs, Lecture Notes on Quantum Algorithms, Chapter 29 (standard reference, not scraped)