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Information-based uncertainty for a photon |
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| Authors: | B Roy Frieden |
| Institution: | College of Optical Sciences, University of Arizona, Tucson, AZ 85721, United States |
| Abstract: | It is shown on the basis of Fisher information that the ultimate root-mean square uncertainty in the position of a single photon of wavelength λ is 0.112λ in vacuum. This is as well an “effective size” for the photon. |
| Keywords: | Fisher information Photon uncertainty Negative index materials |
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