Speeding up the classical simulation of Gaussian boson sampling with limited connectivity
Tian-Yu Yang,
Xiang-Bin Wang
Abstract:Gaussian boson sampling (GBS) plays a crucially important role in demonstrating quantum advantage. As a major imperfection, the limited connectivity of the linear optical network weakens the quantum advantage result in recent experiments. In this work, we introduce an enhanced classical algorithm for simulating GBS processes with limited connectivity. It computes the loop Hafnian of an $$n \times n$$
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