Theoretical studies of control of quantum vibrational modes in nano-scale molecular resonators

2014 Fiscal Year Final Research Report

• Project/Area Number: 24710111
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nanostructural science
• Research Institution: University of Tsukuba
• Principal Investigator: UEDA Akiko 筑波大学, 数理物質系, 助教 (70453537)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 分子接合 / 共振器 / フォノン / トポロジカル超伝導体 / ケルディッシュグリーン関数法 / 電気伝導 / 有機半導体

Outline of Final Research Achievements

We have performed fundamental studies for realizing nano-scale resonators which induce quantum vibrational modes. We have considered a simple model describing the nano-scale resonator and have calculated the transport properties using the Keldysh Green function methods. We have found that the number and states of the vibrational mode are controlled by the dc and ac, and gate voltage. We have also studied a molecule attached to a topological superconductor, which are expected to induce the quantum vibrational mode. We have revealed the anomalous features of conductance emerged at the zero bias voltage.

Free Research Field

ナノ物理学