High-sensitivity imaging with multi-mode twin beams
Autor: | Brambilla, E., Caspani, L., Jedrkiewicz, O., Lugiato, L. A., Gatti, A. |
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Rok vydání: | 2007 |
Předmět: | |
Druh dokumentu: | Working Paper |
DOI: | 10.1103/PhysRevA.77.053807 |
Popis: | Twin entangled beams produced by single-pass parametric down-conversion (PDC) offer the opportunity to detect weak amount of absorption with an improved sensitivity with respect to standard techniques which make use of classical light sources. We propose a differential measurement scheme which exploits the spatial quantum correlation of type II PDC to image a weak amplitude object with a sensitivity beyond the standard quantum limit imposed by shot-noise. Comment: 13 pages, 8 figures |
Databáze: | arXiv |
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