Quantum electromechanical systems and finite-frequency quantum transport

介观物理学研究的是电子系统，它比原子尺度大，但仍然受到量子相相干性的影响。在凝聚态物理的这个子领域中研究的主题与可能的应用相关（例如纳米和量子电子学，量子信息处理）；它们也具有基本的兴趣，因为它们经常涉及无序物理，量子干涉和（可能强的）粒子间相互作用的复杂相互作用。本提案涉及介观物理中两个相对较新的领域：量子电力学和有限频率量子输运。第一个主题（量子电力学）涉及耦合到机械谐振器的介观电子系统的研究（例如，单电子晶体管耦合到微米级双箝位光束）。第二个主题（有限频率量子输运）涉及介观导体的动态响应及其实时波动的研究。

Mesoscopic physics is the study of electronic systems which are large compared to atomic scales, but which nonetheless are influenced by the presence of quantum phase coherence. The topics studied in this subfield of condensed matter physics have relevance to possible applications (e.g. nano and quantum electronics, quantum information processing); they are also of fundamental interest, as they often involve the complex interplay of disorder physics, quantum interference and (possibly strong) interparticle interactions. This proposal deals with topics in two relatively new areas of mesoscopic physics: quantum electro-mechanics and finite-frequency quantum transport. The first topic (quantum electro-mechanics) involves the study of mesoscopic electronic systems coupled to mechanical resonators (e.g. a single electron transistor coupled to a micron-scale doubly-clamped beam). The second topic (finite-frequency quantum transport) involves the study of the dynamic response of mesoscopic conductors, as well as their real-time fluctuations.