Multi-parameter quantum metrology. Issue 4 (3rd July 2016)

• Record Type: Journal Article
• Authors: Szczykulska, Magdalena; Baumgratz, Tillmann; Datta, Animesh
• Is Part Of: Advances in physics: X. Volume 1:Issue 4(2016)
• Page Start: 621
• Page End: 639
• Publication Date: 2016-07-03
• Subjects: Quantum metrology -- multi-parameter estimation -- Cramér–Rao bound -- (quantum) Fisher information matrix -- Heisenberg scaling; 06.20.Dk Measurement and error theory -- 03.65.Ta Foundations of quantum mechanics -- measurement theory -- 03.67.-a Quantum information -- 42.50.-p Quantum optics; Physics -- Periodicals; 530.05
• DOI: 10.1080/23746149.2016.1230476
• Languages: English
• ISSNs: 2374-6149

Abstract

Abstract : 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. Graphical Abstract: