论文标题

基于铁电鱿鱼的电压控制的低温布尔逻辑家族

Voltage-controlled Cryogenic Boolean Logic Family Based on Ferroelectric SQUID

论文作者

Alam, Shamiul, Hossain, Md Shafayat, Ni, Kai, Narayanan, Vijaykrishnan, Aziz, Ahmedullah

论文摘要

量子计算和太空探索的最新进展导致对低温电子的兴趣激增。传统上,传统上使用了超导设备,例如约瑟夫森交界处,约瑟夫森田间效应晶体管,冷冻也和超导量子量子干扰装置(squid)来构建低温逻辑门。但是,由于性质的超导性质,基于栅极电压的这些设备的控制非常困难。更具挑战性的是级联逻辑门,因为这些设备中的大多数都需要当前的偏见。因此,这些设备不像设计逻辑门的半导体晶体管那样方便。在这里,为了克服这些挑战,我们提出了基于铁电鱿鱼(Fesquid)的电压控制逻辑门。 Fesquid表现出两个不同的临界电流水平,用于铁电的两个不同电压切换的极化状态。我们利用偏振依赖性(因此,可控制的电压控制)超导对fesquid的电阻切换来设计布尔逻辑门,例如复制,不是,以及或或或或或或或或或或或或或在上门。这些门的操作使用基于Verilog-A的Fesquid模型进行了验证。最后,为了演示基于Fesquid的逻辑家族的扇形功能,我们使用基于Fesquid的NOT和和 / /或GATES模拟了2输入XOR门。加上基于fesquid的非易失性记忆的持续进展,我们设计的基于Fesquid的逻辑家族将使所有基于Fesquid的低温计算机能够确保逻辑和存储器之间的最小不匹配在速度,功耗,功耗和制造过程方面。

The recent progress in quantum computing and space exploration led to a surge in interest in cryogenic electronics. Superconducting devices such as Josephson junction, Josephson field effect transistor, cryotron, and superconducting quantum interference device (SQUID) are traditionally used to build cryogenic logic gates. However, due to the superconducting nature, gate-voltage-based control of these devices is extremely difficult. Even more challenging is to cascade the logic gates because most of these devices require current bias for their operation. Therefore, these devices are not as convenient as the semiconducting transistors to design logic gates. Here, to overcome these challenges, we propose a ferroelectric SQUID (FeSQUID) based voltage-controlled logic gates. FeSQUID exhibits two different critical current levels for two different voltage-switchable polarization states of the ferroelectric. We utilize the polarization-dependent (hence, voltage-controllable) superconducting to resistive switching of FeSQUID to design Boolean logic gates such as Copy, NOT, AND, and OR gates. The operations of these gates are verified using a Verilog-A-based compact model of FeSQUID. Finally, to demonstrate the fanning out capability of FeSQUID-based logic family, we simulate a 2-input XOR gate using FeSQUID-based NOT, AND, and OR gates. Together with the ongoing progress on FeSQUID-based non-volatile memory, our designed FeSQUID-based logic family will enable all-FeSQUID based cryogenic computer, ensure minimum mismatch between logic and memory blocks in terms of speed, power consumption, and fabrication process.

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