Fault-Tolerant Quantum LDPC Encoders
CoRR(2024)
Abstract
We propose fault-tolerant encoders for quantum low-density parity check
(LDPC) codes. By grouping qubits within a quantum code over contiguous blocks
and applying preshared entanglement across these blocks, we show how
transversal implementation can be realized. The proposed encoder reduces the
error propagation while using multi-qubit gates and is applicable for both
entanglement-unassisted and entanglement-assisted quantum LDPC codes.
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Key words
QLDPC codes,fault-tolerant encoders,entanglement-assistance
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