Implementation method of a fault-tolerant logic H gate based on an RMQC code
A technology of fault-tolerant logic and implementation method, which is applied in the field of quantum computing and quantum error-correcting codes, and can solve the problems of not considering single qubit, fault-tolerant logic H-gate implementation process, high resource consumption, etc.
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[0044] Example 1:
[0045] This embodiment is used in the coded state |Ψ> RMQC(4) The fault-tolerant logic H gate is implemented on it.
[0046] Reference figure 1 , The present invention includes the following steps:
[0047] Step 1) For the encoded state |Ψ> RMQC(4) Add H gate to each qubit:
[0048] The pair contains three stable subgroups with The encoded state|Ψ> RMQC(4) The 15 qubits in the qubits are respectively numbered and added H gate to obtain the intermediate state Where |Ψ> RMQC(4) The number of stable sons included is 14, which are Contains the 4 X stabilizers, 4 Z stabilizers included, and 6 Z stabilizers included;
[0049] Step 2) Obtain three stable subgroups with The symptom value corresponding to each stable sub:
[0050] Step 2a) Yes Z stabilizer and Measure the X stable sub in, and get the symptom value corresponding to each Z stable sub Symptom value corresponding to each X stable sub i∈{1,2,...,6}, j∈{1,2,...,4}, Get symptom value for:
[0051] ...
Example Embodiment
[0092] Example 2:
[0093] This embodiment is the same as step 1) to step 4) and step 7) to step 8) in embodiment 1, except that step 5) and step 6) are modified to be used in the coded state |Ψ> RMQC(5) The fault-tolerant logic H gate is implemented on it.
[0094] Reference figure 1 ,
[0095] Step 5) Yes All contained Z stable subgroups are grouped:
[0096] Each x-model contained in the 5-model is composed of two vertices of the inner model and the outer model. Z stabilizer Combined into bilateral stable subgroups x∈{4,5}, index∈{1,2,...,(x-1)×2 5-x }, the bilaterally stable subgroups corresponding to all x-models Combine into a set of bilateral stable subgroups among them:
[0097]
[0098]
[0099] among them:
[0100]
[0101]
[0102]
[0103]
[0104] At the same time, divide each x-model contained in the 5-model Outside belong Z stabilizer Combine into single-sided stable subgroups One-sided stable subgroups corresponding to all x-models Combine into a single-side...
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