Nonclassical light and metrological power: An introductory review
Abstract
In this review, the authors introduce the notion of quantum nonclassicality of light and the role of nonclassicality in optical quantum metrology. The first part of this paper focuses on defining and characterizing the notion of nonclassicality and how it may be quantified in radiation fields. Several prominent examples of nonclassical light are also discussed. The second part of this paper deals with quantum metrology through the lens of nonclassicality. The authors introduce key concepts such as the Quantum Fisher information, the Cramér-Rao bound, the standard quantum limit, and the Heisenberg limit and discuss how nonclassical light may be exploited to beat classical limitations in high precision measurements. The discussion here will be largely theoretical, with some references to specific experimental implementations.
- Publication:
-
AVS Quantum Science
- Pub Date:
- December 2019
- DOI:
- arXiv:
- arXiv:1909.00942
- Bibcode:
- 2019AVSQS...1a4701T
- Keywords:
-
- Quantum Physics
- E-Print:
- 31 pages, 5 Figures, some typos corrected