期刊
ADVANCES IN PHYSICS-X
卷 1, 期 4, 页码 621-639出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/23746149.2016.1230476
关键词
Quantum metrology; multi-parameter estimation; Cramer-Rao bound; (quantum) Fisher information matrix; Heisenberg scaling
资金
- UK EPSRC [EP/K04057X/2]
- National Quantum Technologies Programme [EP/M01326X/1, EP/M013243/1]
- DSTL [DSTLX-1000091903]
- EPSRC [EP/K04057X/1, EP/K04057X/2, EP/M013243/1, EP/M01326X/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/K04057X/1, EP/M01326X/1, EP/M013243/1, EP/K04057X/2] Funding Source: researchfish
The simultaneous quantum estimation of multiple parameters can provide a better precision than estimating them individually. This is an effect that is impossible classically. We review the rich background of quantum-limited local estimation theory of multiple parameters that underlies these advances. We discuss some of the main results in the field and its recent progress. We close by highlighting future challenges and open questions.
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