论文标题
使用单旋转量标式的量子加热发动机的类似物
Analog of a quantum heat engine using a single-spin qubit
论文作者
论文摘要
具有定期调制能量分解的量子两级系统可以提供最小的通用量子加热机。我们介绍了这种两级系统的实验实现和理论描述,例如在硅隧道场效应晶体管中的杂质电子自旋。在不连贯的制度中,该系统可以与奥托热发动机或冰箱相似。连贯的制度可以描述为这两个方案的叠加,在观察到的源液流电流中产生特定的干扰条纹。
A quantum two-level system with periodically modulated energy splitting could provide a minimal universal quantum heat machine. We present the experimental realization and the theoretical description of such a two-level system as an impurity electron spin in a silicon tunnel field-effect transistor. In the incoherent regime, the system can behave analogously to either an Otto heat engine or a refrigerator. The coherent regime could be described as a superposition of those two regimes, producing specific interference fringes in the observed source-drain current.