Fault-Tolerant Quantum LDPC Encoders

Abhi Kumar Sharma; Shayan Srinivasa Garani

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arXiv · 2405.07242

Fault-Tolerant Quantum LDPC Encoders

Abhi Kumar Sharma·Shayan Srinivasa Garani

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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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Abhi Kumar Sharma, Shayan Srinivasa Garani. 2024-05-12. Fault-Tolerant Quantum LDPC Encoders. https://arxiv.org/abs/2405.07242

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