Heat transport through a two-level system embedded between two harmonic resonators
Heat transport through a two-level system embedded between two harmonic resonators
复制标题
通过嵌入两个谐波谐振器之间的两级系统进行热传输
DOI：
10.1088/1361-648x/ac1281
复制
发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Kato Takeo
中科院分区：
文献类型：
--
作者：
Yamamoto Tsuyoshi;Kato Takeo
我们研究了通过由两个谐振子之间耦合的两能级系统组成的组件的热传输，该组件由量子拉比模型描述，作为使用可控多能级系统的纳米级热器件的原型。使用非相互作用的blip近似，我们发现，线性热导显示出一个特征的温度依赖性与双峰结构。我们还表明，热输运是敏感的模型参数之间的弱系统浴耦合和两个能级系统和谐振子之间的强杂化。多电平系统的这种性质特征对于诸如热晶体管的应用是有利的，并且可以在超导电路中进行检查。
We investigate heat transport through an assembly consisting of a two-level system coupled between two harmonic oscillators, which is described by the quantum Rabi model, as a prototype of nanoscale heat devices using controllable multi-level systems. Using the noninteracting-blip approximation, we find that the linear thermal conductance shows a characteristic temperature dependence with a two-peak structure. We also show that heat transport is sensitive to model parameters for weak system-bath coupling and strong hybridization between the two-level system and the harmonic oscillators. This property characteristic of the multi-level system is advantageous for applications such as a heat transistor, and can be examined in superconducting circuits.