Abstract
Current parameter estimation techniques rely on photodetectors which have a low efficiency and thus are based on gathering averaged statistics. Recently it was claimed that perfect photodetction will change the nature of sensing algorithms and will increase the sensing efficiency beyond the immediate effect of a higher collection efficiency. In this paper we bring up the observation that perfect photodetection implies Heisenberg scaling (1T) for parameter estimations. We analyze a specific example in detail.
Original language | American English |
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Article number | 032133 |
Journal | Physical Review A |
Volume | 93 |
Issue number | 3 |
DOIs | |
State | Published - 28 Mar 2016 |
Bibliographical note
Funding Information:A.R. acknowledges the support of the Israel Science Foundation(Grant No. 039-8823), the European Commission (STReP EQUAM Grant Agreement No. 323714), EU Project DIADEMS, the Marie Curie Career Integration Grant (CIG) IonQuanSense (321798), and the Niedersachsen-Israeli Research Cooperation Program and DIP program (FO 703/2-1).
Publisher Copyright:
© 2016 American Physical Society.