A controlled dense coding scheme is investigated via cluster state.
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无限长且超密的旋转圆筒，这也会使时空弯曲，形成一个时间循环。
An infinitely long, super-dense spinning cylinder, which would also curve space-time enough to create a time-loop.
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本文提出了一个凭借混合纠缠态的超密编码方案，并分析了该方案成功传送信息的概率上界。
We investigate the case in which the prior entanglement is not maximal and the initial state of the entangled pair of qubits being used for the dense coding is a mixed state.
Ideal dense coding protocols allow one to use prior maximal entanglement to send two bits of classical information by the physical transfer of a single encoded qubit.
