Abstract
We propose a quantum voting scheme based on locally indistinguishable orthogonal product states. In this scheme, voting information is encoded as a sequence of orthogonal product states. Different particles of a same orthogonal product state are transmitted separately, which can ensure the security of the message since these orthogonal product states come from a set that cannot be perfectly distinguished by local operations and classical communication (LOCC). Even if an attacker obtains these particles, no effective information can be obtained. Compared with entangled states, orthogonal product states are more convenient and cheaper to prepare. Security analysis and efficiency analysis show that our scheme can resist known quantum attacks and has high efficiency.
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