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ECDQC: Efficient Compilation for Distributed Quantum Computing with Linear Layout

31 October 2024
Kecheng Liu
Yidong Zhou
Haochen Luo
Lingjun Xiong
Yuchen Zhu
Eilis Casey
Jinglei Cheng
Samuel Yen-Chi Chen
Zhiding Liang
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Abstract

In this paper, we propose an efficient compilation method for distributed quantum computing (DQC) using the Linear Nearest Neighbor (LNN) architecture. By exploiting the LNN topology's symmetry, we optimize quantum circuit compilation for High Local Connectivity, Sparse Full Connectivity (HLC-SFC) algorithms like Quantum Approximate Optimization Algorithm (QAOA) and Quantum Fourier Transform (QFT). We also utilize dangling qubits to minimize non-local interactions and reduce SWAP gates. Our approach significantly decreases compilation time, gate count, and circuit depth, improving scalability and robustness for large-scale quantum computations.

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