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- Publisher Website: 10.1103/PhysRevLett.130.070803
- Scopus: eid_2-s2.0-85148334903
- WOS: WOS:000981629300008
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Article: Optimal Strategies of Quantum Metrology with a Strict Hierarchy
| Title | Optimal Strategies of Quantum Metrology with a Strict Hierarchy |
|---|---|
| Authors | |
| Issue Date | 17-Feb-2023 |
| Publisher | American Physical Society |
| Citation | Physical Review Letters, 2023, v. 130, n. 7 How to Cite? |
| Abstract | One of the main quests in quantum metrology is to attain the ultimate precision limit with given resources, where the resources are not only of the number of queries, but more importantly of the allowed strategies. With the same number of queries, the restrictions on the strategies constrain the achievable precision. In this Letter, we establish a systematic framework to identify the ultimate precision limit of different families of strategies, including the parallel, the sequential, and the indefinite-causal-order strategies, and provide an efficient algorithm that determines an optimal strategy within the family of strategies under consideration. With our framework, we show there exists a strict hierarchy of the precision limits for different families of strategies. |
| Persistent Identifier | http://hdl.handle.net/10722/331488 |
| ISSN | 2023 Impact Factor: 8.1 2023 SCImago Journal Rankings: 3.040 |
| ISI Accession Number ID |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Liu, Qiushi | - |
| dc.contributor.author | Hu, Zihao | - |
| dc.contributor.author | Yuan, Haidong | - |
| dc.contributor.author | Yang, Yuxiang | - |
| dc.date.accessioned | 2023-09-21T06:56:16Z | - |
| dc.date.available | 2023-09-21T06:56:16Z | - |
| dc.date.issued | 2023-02-17 | - |
| dc.identifier.citation | Physical Review Letters, 2023, v. 130, n. 7 | - |
| dc.identifier.issn | 0031-9007 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/331488 | - |
| dc.description.abstract | <p>One of the main quests in quantum metrology is to attain the ultimate precision limit with given resources, where the resources are not only of the number of queries, but more importantly of the allowed strategies. With the same number of queries, the restrictions on the strategies constrain the achievable precision. In this Letter, we establish a systematic framework to identify the ultimate precision limit of different families of strategies, including the parallel, the sequential, and the indefinite-causal-order strategies, and provide an efficient algorithm that determines an optimal strategy within the family of strategies under consideration. With our framework, we show there exists a strict hierarchy of the precision limits for different families of strategies.<span> </span></p> | - |
| dc.language | eng | - |
| dc.publisher | American Physical Society | - |
| dc.relation.ispartof | Physical Review Letters | - |
| dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
| dc.title | Optimal Strategies of Quantum Metrology with a Strict Hierarchy | - |
| dc.type | Article | - |
| dc.identifier.doi | 10.1103/PhysRevLett.130.070803 | - |
| dc.identifier.scopus | eid_2-s2.0-85148334903 | - |
| dc.identifier.volume | 130 | - |
| dc.identifier.issue | 7 | - |
| dc.identifier.eissn | 1079-7114 | - |
| dc.identifier.isi | WOS:000981629300008 | - |
| dc.identifier.issnl | 0031-9007 | - |