Conditional production of superpositions of coherent states with inefficient photon detection
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| 58618_1.pdf | 120Kb | Adobe PDF | View |
| Title | Conditional production of superpositions of coherent states with inefficient photon detection |
|---|---|
| Author | Lund, Austin; Jeong, H.; Ralph, T. C.; Kim, M. S. |
| Journal Name | Physical Review A (Atomic, Molecular and Optical Physics) |
| Year Published | 2004 |
| Place of publication | Ridge, NY |
| Publisher | American Physical Society |
| Abstract | It is shown that a linear superposition of two macroscopically distinguishable optical coherent states can be generated using a single photon source and simple all-optical operations. Weak squeezing on a single photon, beam mixing with an auxiliary coherent state, and photon detecting with imperfect threshold detectors are enough to generate a coherent state superposition in a free propagating optical field with a large coherent amplitude (α>2) and high fidelity (F>0.99) . In contrast to all previous schemes to generate such a state, our scheme does not need photon number resolving measurements nor Kerr-type nonlinear interactions. Furthermore, it is robust to detection inefficiency and exhibits some resilience to photon production inefficiency. |
| Peer Reviewed | Yes |
| Published | Yes |
| Publisher URI | http://prola.aps.org/ |
| Alternative URI | http://dx.doi.org/10.1103/PhysRevA.70.020101 |
| Copyright Statement | Copyright 2004 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version. |
| Volume | 70 |
| Issue Number | 2 |
| Page from | 020101-1 |
| Page to | 020101-4 |
| ISSN | 1050-2947 |
| Date Accessioned | 2009-12-01 |
| Date Available | 2009-12-16T07:09:38Z |
| Language | en_AU |
| Faculty | Faculty of Science, Environment, Engineering and Technology |
| Subject | PRE2009-Cross discipline |
| URI | http://hdl.handle.net/10072/27347 |
| Publication Type | Journal Articles (Refereed Article) |
| Publication Type Code | c1x |
Please use this identifier to cite this record: http://hdl.handle.net/10072/27347
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