| Budget Amount *help |
¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Outline of Final Research Achievements |
Propagation properties of electromagnetic fields in dielectrics are well described with the refractive index and Fresnel coefficients within the classical electromagnetics. In this research, we showed that the refractive index and Fresnel coefficients are consistently represented also in the quantum optics.
The optical fiber, which is an essential element of the optical communication system today, consists of dielectrics. It is supposed that a certain intensity of electromagnetic fields travel in the optical fiber. Recently, however, protocols with weak optical signals, such as the quantum cryptography, are considered, and analysis of them is impossible within the classical electromagnetics. Through the results obtained in the present research, we can correctly evaluate propagation properties of electromagnetic fields in optical fibers from the viewpoint of the quantum optics.
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