| Title: |
Phase sensitivity of gain-unbalanced nonlinear interferometers |
| Authors: |
Giese, Enno; Lemieux, Samuel; Manceau, Mathieu; Fickler, Robert; Boyd, Robert W. |
| Publisher Information: |
American Physical Society |
| Publication Year: |
2024 |
| Collection: |
TU Darmstadt: tuprints |
| Description: |
The phase uncertainty of an unseeded nonlinear interferometer, where the output of one nonlinear crystal is transmitted to the input of a second crystal that analyzes it, is commonly said to be below the shot-noise level but highly dependent on detection and internal loss. Unbalancing the gains of the first (source) and second (analyzer) crystals leads to a configuration that is tolerant against detection loss. However, in terms of sensitivity, there is no advantage in choosing a stronger analyzer over a stronger source, and hence the comparison to a shot-noise level is not straightforward. Internal loss breaks this symmetry and shows that it is crucial whether the source or analyzer is dominating. Based on these results, claiming a Heisenberg scaling of the sensitivity is more subtle than in a balanced setup. |
| Document Type: |
article in journal/newspaper |
| File Description: |
text |
| Language: |
English |
| Relation: |
https://tuprints.ulb.tu-darmstadt.de/27082/1/PhysRevA.96.053863.pdf; Giese, Enno; Lemieux, Samuel; Manceau, Mathieu; Fickler, Robert; Boyd, Robert W. (2024)Phase sensitivity of gain-unbalanced nonlinear interferometers. In: Physical Review A, 2017, 96 (5) doi:10.26083/tuprints-00027082 Article, Secondary publication, Publisher's Version |
| DOI: |
10.26083/tuprints-00027082 |
| Availability: |
http://tuprints.ulb.tu-darmstadt.de/27082/; https://doi.org/10.26083/tuprints-00027082 |
| Rights: |
In Copyright ; info:eu-repo/semantics/openAccess |
| Accession Number: |
edsbas.D48C2217 |
| Database: |
BASE |