We present simple and practical quantum solution for secure multiparty communication protocols, the secret sharing and the communication complexity and their proof-of-principle experimental realizations. In the secret sharing protocol, a secret is split among several parties in a way that its reconstruction requires the collaboration of the participating parties. In the communication complexity problem, the goal is to maximize the success probability of the partners for solving for giving communication resources some N partner communication complexity tasks. Our quantum solution is based on sequential transformations on a single qubit. In contrast with recently proposed schemes involving multiparticle GHZ states.
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