Average number is an insufficient metric for interferometry
We argue that analysing schemes for metrology solely in terms of the average particle number can obscure the number of particles effectively used in informative events. For a number of states we demonstrate that, in both frequentist and Bayesian frameworks, the average number of a state can essentia...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2021-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/ac3571 |
| _version_ | 1797749983132254208 |
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| author | Dominic Branford Jesús Rubio |
| author_facet | Dominic Branford Jesús Rubio |
| author_sort | Dominic Branford |
| collection | DOAJ |
| description | We argue that analysing schemes for metrology solely in terms of the average particle number can obscure the number of particles effectively used in informative events. For a number of states we demonstrate that, in both frequentist and Bayesian frameworks, the average number of a state can essentially be decoupled from the aspects of the total number distribution associated with any metrological advantage. |
| first_indexed | 2024-03-12T16:27:27Z |
| format | Article |
| id | doaj.art-66d9a3c418e94887936f146dbc2781d7 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:27:27Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-66d9a3c418e94887936f146dbc2781d72023-08-08T15:40:36ZengIOP PublishingNew Journal of Physics1367-26302021-01-01231212304110.1088/1367-2630/ac3571Average number is an insufficient metric for interferometryDominic Branford0https://orcid.org/0000-0001-8989-7464Jesús Rubio1https://orcid.org/0000-0002-8193-8273Institute of Photonics and Quantum Sciences, Heriot-Watt University , Edinburgh, EH14 4AS, United KingdomDepartment of Physics and Astronomy, University of Exeter , Stocker Road, Exeter, EX4 4QL, United KingdomWe argue that analysing schemes for metrology solely in terms of the average particle number can obscure the number of particles effectively used in informative events. For a number of states we demonstrate that, in both frequentist and Bayesian frameworks, the average number of a state can essentially be decoupled from the aspects of the total number distribution associated with any metrological advantage.https://doi.org/10.1088/1367-2630/ac3571quantum metrologyoptical interferometryvariable-number states |
| spellingShingle | Dominic Branford Jesús Rubio Average number is an insufficient metric for interferometry New Journal of Physics quantum metrology optical interferometry variable-number states |
| title | Average number is an insufficient metric for interferometry |
| title_full | Average number is an insufficient metric for interferometry |
| title_fullStr | Average number is an insufficient metric for interferometry |
| title_full_unstemmed | Average number is an insufficient metric for interferometry |
| title_short | Average number is an insufficient metric for interferometry |
| title_sort | average number is an insufficient metric for interferometry |
| topic | quantum metrology optical interferometry variable-number states |
| url | https://doi.org/10.1088/1367-2630/ac3571 |
| work_keys_str_mv | AT dominicbranford averagenumberisaninsufficientmetricforinterferometry AT jesusrubio averagenumberisaninsufficientmetricforinterferometry |