Enhanced quantum parameter estimation based on the Hardy paradox

arXiv:2601.20602 · quant-ph · Submitted 2026-01-28 · Read on arXiv

quant-ph

Submitted: 2026-01-28

Updated: 2026-10-13

Comments: 7 pages, 3 figures, improving the statements regarding the postselected QFI surpassing the QCRB, the postselection setup, and contextuality as a quantum resource for enhancing phase estimation precision in version v2

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Post-Selection — 3× in this paper · explained in 2 episodes

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