Limitations on the quantum non-Gaussian characteristic of Schrödinger kitten state generation
A quantitative analysis is conducted on the impacts of experimental imperfections in the input state, the detector properties, and their interactions on photon-subtracted squeezed vacuum states in terms of a quantum non-Gaussian character witness and Wigner function. Limitations of the non-classical...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2013-01-01
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| Series: | New Journal of Physics |
| Online Access: | https://doi.org/10.1088/1367-2630/15/2/023042 |
| _version_ | 1797751718635634688 |
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| author | Hongbin Song Katanya B Kuntz Elanor H Huntington |
| author_facet | Hongbin Song Katanya B Kuntz Elanor H Huntington |
| author_sort | Hongbin Song |
| collection | DOAJ |
| description | A quantitative analysis is conducted on the impacts of experimental imperfections in the input state, the detector properties, and their interactions on photon-subtracted squeezed vacuum states in terms of a quantum non-Gaussian character witness and Wigner function. Limitations of the non-classicality and quantum non-Gaussian characteristic of Schrödinger kitten states are identified and addressed. The detrimental effects of a photon-number detector on the generation of odd Schrödinger kitten states at near-infrared wavelengths (∼860 nm) and telecommunication wavelengths (∼1550 nm) are presented and analysed. This analysis demonstrates that the high dark count probability of telecommunication-wavelength photon-number detectors significantly undermines the negativity of the Wigner function in Schrödinger kitten state generation experiments. For a one-photon-subtracted squeezed vacuum state at ∼1550 nm, an avalanche photodiode-based photon-number-resolving detector provides no significant advantage over a non-photon-number-resolving detector when imperfections, such as dark count probability and inefficiency, are taken into account. |
| first_indexed | 2024-03-12T16:52:41Z |
| format | Article |
| id | doaj.art-7770459abc8741ff97391c6e2bc37b9b |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:52:41Z |
| publishDate | 2013-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-7770459abc8741ff97391c6e2bc37b9b2023-08-08T11:05:30ZengIOP PublishingNew Journal of Physics1367-26302013-01-0115202304210.1088/1367-2630/15/2/023042Limitations on the quantum non-Gaussian characteristic of Schrödinger kitten state generationHongbin Song0Katanya B Kuntz1Elanor H Huntington2School of Engineering and Information Technology, University of New South Wales Canberra , ACT 2610, AustraliaSchool of Engineering and Information Technology, University of New South Wales Canberra , ACT 2610, Australia; Center for Quantum Computation and Communication Technology, University of New South Wales Canberra , ACT 2610, AustraliaSchool of Engineering and Information Technology, University of New South Wales Canberra , ACT 2610, AustraliaA quantitative analysis is conducted on the impacts of experimental imperfections in the input state, the detector properties, and their interactions on photon-subtracted squeezed vacuum states in terms of a quantum non-Gaussian character witness and Wigner function. Limitations of the non-classicality and quantum non-Gaussian characteristic of Schrödinger kitten states are identified and addressed. The detrimental effects of a photon-number detector on the generation of odd Schrödinger kitten states at near-infrared wavelengths (∼860 nm) and telecommunication wavelengths (∼1550 nm) are presented and analysed. This analysis demonstrates that the high dark count probability of telecommunication-wavelength photon-number detectors significantly undermines the negativity of the Wigner function in Schrödinger kitten state generation experiments. For a one-photon-subtracted squeezed vacuum state at ∼1550 nm, an avalanche photodiode-based photon-number-resolving detector provides no significant advantage over a non-photon-number-resolving detector when imperfections, such as dark count probability and inefficiency, are taken into account.https://doi.org/10.1088/1367-2630/15/2/023042 |
| spellingShingle | Hongbin Song Katanya B Kuntz Elanor H Huntington Limitations on the quantum non-Gaussian characteristic of Schrödinger kitten state generation New Journal of Physics |
| title | Limitations on the quantum non-Gaussian characteristic of Schrödinger kitten state generation |
| title_full | Limitations on the quantum non-Gaussian characteristic of Schrödinger kitten state generation |
| title_fullStr | Limitations on the quantum non-Gaussian characteristic of Schrödinger kitten state generation |
| title_full_unstemmed | Limitations on the quantum non-Gaussian characteristic of Schrödinger kitten state generation |
| title_short | Limitations on the quantum non-Gaussian characteristic of Schrödinger kitten state generation |
| title_sort | limitations on the quantum non gaussian characteristic of schrodinger kitten state generation |
| url | https://doi.org/10.1088/1367-2630/15/2/023042 |
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