Giese, Enno ; Lemieux, Samuel ; Manceau, Mathieu ; Fickler, Robert ; Boyd, Robert W. (2017)
Phase sensitivity of gain-unbalanced nonlinear interferometers.
In: Physical Review A, 96 (5)
doi: 10.1103/PhysRevA.96.053863
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
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
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2017 |
| Autor(en): | Giese, Enno ; Lemieux, Samuel ; Manceau, Mathieu ; Fickler, Robert ; Boyd, Robert W. |
| Art des Eintrags: | Bibliographie |
| Titel: | Phase sensitivity of gain-unbalanced nonlinear interferometers |
| Sprache: | Englisch |
| Publikationsjahr: | 29 November 2017 |
| Verlag: | APS Physics |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review A |
| Jahrgang/Volume einer Zeitschrift: | 96 |
| (Heft-)Nummer: | 5 |
| DOI: | 10.1103/PhysRevA.96.053863 |
| URL / URN: | https://journals.aps.org/pra/abstract/10.1103/PhysRevA.96.05... |
| Kurzbeschreibung (Abstract): | 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 |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Angewandte Physik 05 Fachbereich Physik > Institut für Angewandte Physik > Theoretische Quantenoptik 05 Fachbereich Physik > Institut für Angewandte Physik > Theoretische Quantenphysik |
| Hinterlegungsdatum: | 07 Jul 2022 09:55 |
| Letzte Änderung: | 12 Jan 2023 15:10 |
| PPN: | 503609641 |
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