Employing trapped cold ions to verify the quantum Jarzynski equality
Employing trapped cold ions to verify the quantum Jarzynski equality
复制标题
DOI：
10.1103/physrevlett.101.070403
复制
发表时间：
2008-08-15
影响因子：
8.6
通讯作者：
Lutz, Eric
中科院分区：
文献类型：
--
作者：
Huber, Gerhard;Schmidt-Kaler, Ferdinand;Lutz, Eric
我们提出了一个方案来研究一个量子粒子的非平衡功分布在良好控制的转换的外部电位，利用单一离子的多功能性在分段线性保罗阱。我们详细描述了如何制备、操纵和最终读出单个离子的运动量子态，以充分确定谐波和非谐波势的自由能差。我们的系统独特之处在于，我们展示了离子如何浸入工程激光场储层中。因此，捕获离子是研究开放和封闭量子系统中Jarzynski等式的理想工具。
We propose a scheme to investigate the nonequilibrium work distribution of a quantum particle under well controlled transformations of the external potential, exploiting the versatility of a single ion in a segmented linear Paul trap. We describe in detail how the motional quantum state of a single ion can be prepared, manipulated, and finally readout to fully determine the free energy difference in both harmonic and anharmonic potentials. Uniquely to our system, we show how an ion may be immersed in an engineered laser-field reservoir. Trapped ions therefore represent an ideal tool for investigating the Jarzynski equality in open and closed quantum systems.