Paper Citation Record · LEDGER

Quantum correlations in optical metrology: Heisenberg-limited phase estimation without mode entanglement

As of 5 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 2 inbound Pith citation observations for arXiv:1404.7110.

A citation records a reference. It does not transfer a finding from one paper to another.

Coverage vector

measured 0 of 0 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links

measured 2 of 2 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-05T06:32:48.257954+00:00

measured 2 of 2 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links, observed 2026-08-04T06:57:05.768128Z

measured 0 of 1 external citation measurements

A source-named dated measurement, never combined with another source.

Source: cited_works

0 of 0 outbound references displayed

External citation measurements

No source-named external measurement is stored.

No outbound reference observations are available for this paper version.

Observation 0857b81e-767d-4a22-8faf-589c751aa5ad · inbound

Reference 12

Resolution: unresolved; no resolver link, observed 2026-08-03T21:12:07.216780Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation bee65114-9f6d-4caf-b2b3-5f4bb3d1ef15 · inbound

Reference 12

Resolution: unresolved; no resolver link, observed 2026-08-04T06:57:05.768128Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.