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Probabilistic direct counterfactual quantum communication |
Sheng Zhang(张盛) |
Department of Electronic Technology, China Maritime Police Academy, Ningbo 315801, China |
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Abstract It is striking that the quantum Zeno effect can be used to launch a direct counterfactual communication between two spatially separated parties, Alice and Bob. So far, existing protocols of this type only provide a deterministic counterfactual communication service. However, this counterfactuality should be payed at a price. Firstly, the transmission time is much longer than a classical transmission costs. Secondly, the chained-cycle structure makes them more sensitive to channel noises. Here, we extend the idea of counterfactual communication, and present a probabilistic-counterfactual quantum communication protocol, which is proved to have advantages over the deterministic ones. Moreover, the presented protocol could evolve to a deterministic one solely by adjusting the parameters of the beam splitters.
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Received: 31 May 2016
Revised: 03 November 2016
Accepted manuscript online:
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PACS:
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03.67.Dd
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(Quantum cryptography and communication security)
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03.67.Hk
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(Quantum communication)
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42.50.Ex
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(Optical implementations of quantum information processing and transfer)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61300203). |
Corresponding Authors:
Sheng Zhang
E-mail: huoxingren112@163.com
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Cite this article:
Sheng Zhang(张盛) Probabilistic direct counterfactual quantum communication 2017 Chin. Phys. B 26 020304
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