arXiv:2506.21324cs.NEcs.LG2025-06被引 4

提出可本地学习的量子脉冲神经网络,支持单次推断脉冲生成。

Stochastic Quantum Spiking Neural Networks with Quantum Memory and Local Learning

  • 用多量子比特电路实现带量子记忆的脉冲单元,单次运行生成脉冲概率
  • 在固定参数量下,性能优于以往量子与经典脉冲网络模型
  • 适合脉冲驱动场景,如类脑传感与通信系统

类脑计算与量子计算作为人工智能新范式,各具优势:类脑系统以稀疏事件驱动方式高效处理时序数据,仅在输入事件时耗电;量子计算则利用量子态叠加与纠缠,使状态空间随量子比特数呈指数增长。现有量子脉冲神经网络存在局限:依赖单量子比特上的经典记忆机制,需重复测量估计放电概率,并依赖全局反向传播训练。本文提出新型随机量子脉冲(SQS)神经元模型,采用多量子比特电路实现具有内部量子记忆的脉冲单元,可在推理阶段单次运行完成概率性脉冲生成。进一步构建基于该神经元的网络(SQSNN),并证明其可通过硬件友好的局部学习规则训练,无需全局经典反向传播。实验表明,在传统与类脑数据集上,该模型在固定可训练参数数量条件下,性能优于先前量子及经典脉冲神经网络,展现出在类脑集成感知与通信(N-ISAC)等事件驱动场景中的应用潜力。

原文摘要 · Abstract (English)

Neuromorphic and quantum computing have recently emerged as promising paradigms for advancing artificial intelligence, each offering complementary strengths. Neuromorphic systems built on spiking neurons excel at processing time series data efficiently through sparse, event-driven computation, consuming energy only upon input events. Quantum computing, on the other hand, operates on state spaces that grow exponentially in dimension with the number of qubits -- as a consequence of tensor-product composition -- with quantum states admitting superposition across basis states and entanglement between subsystems. Hybrid approaches combining these paradigms have begun to show potential, but existing quantum spiking models have important limitations. Notably, they implement classical memory mechanisms on single qubits, requiring repeated measurements to estimate firing probabilities, while relying on conventional backpropagation for training. In this paper, we propose a novel stochastic quantum spiking (SQS) neuron model that addresses these challenges. The SQS neuron uses multi-qubit quantum circuits to realize a spiking unit with internal quantum memory, enabling event-driven probabilistic spike generation in a single shot during inference. Furthermore, we study networks of SQS neurons, dubbed SQS neural networks (SQSNN), and demonstrate that they can be trained via a hardware-friendly local learning rule, eliminating the need for global classical backpropagation. The proposed SQSNN model is shown via experiments with both conventional and neuromorphic datasets to improve over previous quantum spiking neural networks, as well as over classical counterparts, when fixing the overall number of trainable parameters, highlighting its potential for event-driven applications such as neuromorphic integrated sensing and communications (N-ISAC).

量子神经网络脉冲神经网络类脑计算本地学习

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