Superdense coding with single-particle entanglement |
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Authors: | Jacob A. Dunningham |
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Affiliation: | (1) Department of Physics, Bilkent University, Bilkent, Ankara, 06800, Turkey;(2) Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109-8099, USA;(3) Department of Mathematics, Bilkent University, Bilkent, Ankara, 06800, Turkey |
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Abstract: | Recent work has explored the idea that nonlocality or entanglement involving a single particle should be taken seriously and has real measurable consequences. Theoretical and experimental schemes have shown, for example, that single-particle states can violate Bell’s inequalities. Here we discuss the possibility of using single-particle entanglement for implementing a superdense coding protocol. Particle-number superselection rules restrict this scheme to being able to transmit log2(3) bits of information. While this falls short of the two-particle limit of two bits, it still exceeds what can be achieved without entanglement. |
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