Enhanced Precision in Entangled Quantum Clocks with Phase Estimation Algorithm

Quantum Physics [Submitted on 8 Apr 2026] Enhanced Precision in Entangled Quantum Clocks with Phase Estimation Algorithm Won-Young Hwang We present an enhanced entangled quantum clock protocol that incorporates a quantum phase estimation algorithm to directly estimate proper-time differences as an unknown phase. By employing highly entangled multi-clock states, the achievable uncertainty scales inversely with the total number of quantum clocks, surpassing the standard projection-noise limit. This approach extends the original EQC framework and provides a systematic method for high-precision relativistic time comparison. Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2604.06606 [quant-ph]   (or arXiv:2604.06606v1 [quant-ph] for this version)   https://doi.org/10.48550/arXiv.2604.06606 Focus to learn more Submission history From: Won-Young Hwang [view email] [v1] Wed, 8 Apr 2026 02:39:46 UTC (6 KB) Access Paper: HTML (experimental) view license Current browse context: quant-ph < prev   |   next > new | recent | 2026-04 References & Citations INSPIRE HEP NASA ADS Google Scholar Semantic Scholar Export BibTeX Citation Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer (What is the Explorer?) Connected Papers Toggle Connected Papers (What is Connected Papers?) Litmaps Toggle Litmaps (What is Litmaps?) scite.ai Toggle scite Smart Citations (What are Smart Citations?) Code, Data, Media Demos Related Papers About arXivLabs Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)