| | |
| | |
Stat |
Members: 3643 Articles: 2'487'895 Articles rated: 2609
28 March 2024 |
|
| | | |
|
Article overview
| |
|
Joint estimation of phase and phase diffusion for quantum metrology | Mihai D. Vidrighin
; Gaia Donati
; Marco G. Genoni
; Xian-Min Jin
; W. Steven Kolthammer
; M.S. Kim
; Animesh Datta
; Marco Barbieri
; Ian A. Walmsley
; | Date: |
20 Oct 2014 | Abstract: | Phase estimation, at the heart of many quantum metrology and communication
schemes, can be strongly affected by noise, whose amplitude may not be known,
or might be subject to drift. Here, we investigate the joint estimation of a
phase shift and the amplitude of phase diffusion, at the quantum limit. For
several relevant instances, this multiparameter estimation problem can be
effectively reshaped as a two-dimensional Hilbert space model, encompassing the
description of an interferometer phase probed with relevant quantum states --
split single-photons, coherent states or N00N states. For these cases, we
obtain a trade-off bound on the statistical variances for the joint estimation
of phase and phase diffusion, as well as optimum measurement schemes. We use
this bound to quantify the effectiveness of an actual experimental setup for
joint parameter estimation for polarimetry. We conclude by discussing the form
of the trade-off relations for more general states and measurements. | Source: | arXiv, 1410.5353 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser claudebot
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |