Pith. sign in

REVIEW 1 cited by

Role of quantum correlation in metrology beyond standard quantum limit

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1405.5357 v2 pith:R62MWU44 submitted 2014-05-21 quant-ph

classification quant-ph
keywords quantumcorrelationmetrologylimitprecisioncorrelationsentanglementmetrological
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

Quantum metrology is studied in the presence of quantum correlation. The quantum correlation measure based on quantum Fisher information enables us to gain a deeper insight on how quantum correlations are instrumental in setting metrological precision. Our analysis shows that not only the entanglement but also the quantum correlation plays important roles to enhance precision in quantum metrology. Even in the absence of entanglement, quantum correlation can be exploited as the resource to beat standard quantum limit and reach Heisenberg limit in metrology. Clearly unraveling the role of quantum correlations, the tighter bounds on the metrological precision are derived.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Thermal Quantum Correlations in Coupled Andreev Spin Qubits: Interplay of Superconducting Phase and Spin-Orbit Interaction

    quant-ph 2026-07 conditional novelty 4.0 of 10

    Thermal LQFI and LQU in coupled Andreev spin qubits rise with tunneling and spin–orbit coupling, fall with temperature, and oscillate with superconducting phase via the effective exchange gap.

Pith tools