Experimental demonstrations of unconditional security in a purely classical regime

• URL: http://arxiv.org/abs/2008.05833v1
• Date: Thu, 13 Aug 2020 11:41:52 GMT
• Title: Experimental demonstrations of unconditional security in a purely classical regime
• Abstract summary: Unconditional secured classical key distribution (USCKD) proposed for unconditional security in purely classical regime. USCKD provides unconditional security by deterministic randomness via path superposition-based reversible unitary transformations. First experimental demonstration of USCKD protocol is presented.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: So far, unconditional security in key distribution processes has been confined to quantum key distribution (QKD) protocols based on the no-cloning theorem of nonorthogonal bases. Recently, a completely different approach, the unconditionally secured classical key distribution (USCKD), has been proposed for unconditional security in the purely classical regime. Unlike QKD, both classical channels and orthogonal bases are key ingredients in USCKD, where unconditional security is provided by deterministic randomness via path superposition-based reversible unitary transformations in a coupled Mach-Zehnder interferometer. Here, the first experimental demonstration of the USCKD protocol is presented.

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