Single electron optomechanics of the transversal carbon nanotube vibration

碳纳米管横向振动的单电子光力学

• 批准号: 438640202
• 负责人: Dr. Andreas Klaus Hüttel
• 金额: --
• 依托单位: Institut für Experimentelle und Angewandte Physik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/438640202?language=en
• 关键词: Single; electron; optomechanics; transversal; carbon

Carbon nanotubes are both prototypical single electron systems and nano-electromechanical resonators, and research on the interaction between charge transport and motion has led to many fascinating insights. We have recently been able to demonstrate as first research group world-wide optomechanical coupling of a suspended nanotube quantum dot and a superconducting coplanar microwave resonator [arXiv:1904.12188]. The coupling is strongly enhanced by Coulomb blockade. Here, we intend to build on these results, making CNTs a unique system where single electron tunneling, discrete well-defined electronic states, and microwave optomechanics interact. The quantum dot – microwave cavity combination is a highly versatile tool with large potential for further improvement. Two objectives shall guide our work: on the one hand, characterization of energy transfer and vibrational coupling of electronic transport processes, with the optomechanical system as sensor, on the other hand, the quantum manipulation of the transversal CNT vibration, with discrete states of trapped electrons as ancilla.

碳纳米管既是典型的单电子系统，也是纳米机电谐振器，对电荷传输和运动之间相互作用的研究已经产生了许多迷人的见解。作为第一个研究小组，我们最近已经能够证明悬浮纳米管量子点和超导共面微波谐振器的全球光机械耦合[arXiv：1904.12188]。库仑阻塞强烈地增强了耦合。在这里，我们打算在这些结果的基础上，使碳纳米管成为一个独特的系统，其中单电子隧穿，离散定义良好的电子状态，和微波光学力学相互作用。量子点-微波腔组合是一种高度通用的工具，具有进一步改进的巨大潜力。两个目标将指导我们的工作：一方面，表征能量转移和电子输运过程的振动耦合，与光学机械系统作为传感器，另一方面，横向CNT振动的量子操纵，与被困电子的离散状态作为辅助。