ResQNets: A Residual Approach for Mitigating Barren Plateaus in Quantum Neural Networks

Understand

The barren plateau problem in quantum neural networks (QNNs) is a significant challenge that hinders the practical success of QNNs.

• In this paper, we introduce residual quantum neural networks (ResQNets) as a solution to address this problem.
• ResQNets are inspired by classical residual neural networks and involve splitting the conventional QNN architecture into multiple quantum nodes, each containing its own parameterized quantum circuit, and introducing residual connections between these nodes.
• Our study demonstrates the efficacy of ResQNets by comparing their performance with that of conventional QNNs and plain quantum neural networks (PlainQNets) through multiple training experiments and analyzing the cost function landscapes.