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Xi Cao¹, Maria Mucci¹, Gangqiang Liu¹

¹University of Pittsburgh, Department of Physics and Astronomy, Pittsburgh, Pennsylvania, 15260, USA.

Physical review letters

|December 19, 2025

概括

研究人员使用超导非线性不对称感应元件 (SNAIL) 模式开发了一种可调节的量子浴. 这种可控制的浴室允许精确调节量子系统的温度,增强量子模拟能力.

科学领域:

量子计算是一种量子计算.
量子模拟的量子模拟
超导电路中的超导电路

背景情况:

量子模拟器需要精确控制系统参数.
可调节的量子浴提供了额外的自由度来操纵量子系统.
现有的浴室温度控制方法是有限的.

研究的目的:

为了实验地实现一个可调节的量子浴室用于一个超声量子比特.
为了证明对有效浴室温度的精确控制,包括负值.
为了探索这种可调节的浴在量子模拟中的应用.

主要方法:

将一个跨子量子位合到一个有损的超导非线性不对称感应元件 (SNAIL) 模式.
参数调节量子位和SNAIL模式之间的合以控制浴室温度.
利用跨子量子位的能量水平来探测浴的热化特性.

主要成果:

成功创建了一个可调节的量子浴室,可控制有效温度从负值到正值.
证明量子比特热化达到平衡,基于参数抽取的不同种群分布.
将该方法扩展到跨子的第三个能量水平,显示了更广泛的适用性.

结论:

开发的可调节浴是量子模拟器的宝贵工具.
量子浴室的精确温度控制使新的量子模拟策略成为可能.
这种技术为设计量子系统中的特定光子群分布提供了一条途径.

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