This paper presents a CMOS-compatible Lechner-Hauke-Zoller (LHZ)--based analog tile structure as a fundamental unit for developing scalable analog Ising machines (IMs). In the designed LHZ tile, the voltage-controlled oscillators are employed as the physical Ising spins, while for the ancillary spins, we introduce an oscillator-based circuit to emulate the constraint needed to ensure the correct functionality of the tile. We implement the proposed LHZ tile in 12nm FinFET technology using the Cadence Virtuoso. Simulation results show the proposed tile could converge to the results in about 31~ns. Also, the designed spins could operate at approximately 13~GHz.

翻译：本文提出了一种基于CMOS兼容的Lechner-Hauke-Zoller（LHZ）架构的模拟瓦片结构，作为构建可扩展模拟伊辛机的基本单元。在所设计的LHZ瓦片中，压控振荡器被用作物理伊辛自旋；而对于辅助自旋，我们引入了一种基于振荡器的电路来模拟确保瓦片正确功能所需的约束条件。我们使用Cadence Virtuoso工具在12纳米FinFET工艺上实现了所提出的LHZ瓦片。仿真结果表明，该瓦片可在约31纳秒内收敛至结果。此外，所设计的自旋单元工作频率可达约13吉赫兹。