Bidirectional single-bit state preparation method based on Brown state and network coding
A network coding, five-bit technology, applied in the field of bidirectional single-bit state preparation based on Brown state and network coding
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[0129] Example 1: Prepare the target state with the target node C as
[0130] The target state prepared by the destination node D is
[0131] The source node A prepares the target state as
[0132] The source node B prepares the target state as For example, the specific steps are as follows:
[0133] Step 1: The source node A and the destination node C pre-share the five-bit Brown state as a channel, and the five-bit Brown state is in the following form:
[0134]
[0135] The source node B and the destination node D pre-share the five-bit Brown state as the channel, and the form of the five-bit Brown state is as follows:
[0136]
[0137] First, add auxiliary particles to the five-bit Brown state channel shared by source node A and destination node C where A 1 and C 1 Particle A 3 and C 3 With the CNOT operation, the channel becomes the following form:
[0138]
[0139] Where node A owns particle A 1 ,A 2 ,A 3 , node C owns particle C 1 ,C 2 ,C ...
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