Some properties and applications of biphoton states of three-mode light |
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| Authors: | V N Gorbachev S P Kulik A I Trubilko |
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| Institution: | (1) St. Petersburg State University of Aerospace Instrumentation, St. Petersburg, 190000, Russia;(2) Moscow State University, Moscow, 119899, Russia |
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| Abstract: | Statistical properties, generation, and applications of three-mode biphoton fields with no more than one photon in each mode are discussed. Such field states have sub-Poissonian photon statistics and can be squeezed and entangled. The modes that simultaneously exhibit these properties in measurements are indicated. Two setups for generating such states via spontaneous parametric down-conversion are described. It is shown that the field states discussed in this study provide a quantum channel for teleportation, dense coding, and quantum key distribution. |
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