在量子处理器上可穿越的虫洞动态
Daniel Jafferis1, Alexander Zlokapa2,3,4,5, Joseph D Lykken6
1Center for the Fundamental Laws of Nature, Harvard University, Cambridge, MA, USA.
Nature
|November 30, 2022
概括
研究人员通过实验实现了量子处理器上的Sachdev-Ye-Kitaev (SYK) 模型. 这项研究探讨了量子引力和ER=EPR关系,
科学领域:
- 量子引力
- 全息制造
- 量子信息
背景情况:
- 全息原理表明时空可以用一个低维边界来描述,反德西特 (AdS) /符合场理论对应作为一个关键例子.
- 萨赫德夫-耶-基塔耶夫 (SYK) 模型提供了一个全息图的实现,其特征表明AdS2中的重力双重.
- 假设ER=EPR与时空几何有关,可穿越的虫洞作为一个建议的机制.
研究的目的:
- 通过在SYK模型中探测可穿越的虫洞动态来实验研究ER=EPR关系.
- 在模拟引力现象的量子电路上构建和实现简化的 (分散的) SYK 模型.
- 探索量子模拟在研究量子引力的基本方面所具有的潜力.
主要方法:
- 使用机器学习技术创建一个分散的SYK模型.
- 在使用164个双量子门的九位量子电路上实现了分散的SYK模型.
- 观测到可穿越的虫洞动态,包括完美尺寸的卷曲,负能量冲击波效应,沙皮罗时间延迟和因果信号传播.
主要成果:
- 在实验实现的SYK模型中成功模拟可穿越的虫洞动力学.
- 尽管它是近似的, 但它保留了关键的量子引力和虫洞物理.
- 证明了与二维重力双相一致的现象,包括混和热化动态.
结论:
- 这项实验代表了使用量子模拟进行量子引力实验室研究的重要一步.
- 这些发现支持SYK模型中的ER=EPR猜测和全息原理.
- 未来的工作需要对更高维度的双重模型和其他类似SYK的模型进行硬件改进和理论进步.
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