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Quantum-dot devices based on the reaction-diffusion information processing architecture

基于反应扩散信息处理架构的量子点器件

基本信息

批准号：
14350174
负责人：
AMEMIYA Yoshihito
金额：
$ 8.83万
依托单位：
Hokkaido University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2003
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14350174/
关键词：
reaction-diffusion system quantum nano single electron nonlinear oscillation dissipative structure pattern self organization dynamics of life 量子ドット反応拡散トンネル現象

项目摘要

The purpose of this work is to propose a single-electron device that is analogous to the reaction-diffusion system, which is a chemical complex system producing various dynamic phenomena in the natural world. In this work, we proposed a method of constructing electrical RD systems. An RD system can be considered an aggregate of chemical nonlinear oscillators interacting with one another, so we can construct electrical RD systems by using electrical oscillators instead of chemical ones. We used, as the electrical oscillator, a single-electron circuit that produces nonlinear oscillation caused by the Coulomb blockade phenomenon. The action of diffusion in RD systems can be imitated by capacitive coupling between the oscillators. By arranging coupled oscillators into a network, we can construct a single-electron RD system and describes its operation. Computer simulation revealed that the system produces electrical dissipative structures, or animated spatiotemporal patterns of node potential in the circuit, which is a characteristic similar to that in chemical RD systems. We showed through computer simulation that the device produces animated spatiotemporal patterns of node voltages, e.g., a rotating spiral pattern similar to that of a colony of cellular slime molds and a dividing-and-multiplying pattern that reminds us of cell division.

本工作的目的是提出一种类似于反应扩散系统的单电子器件，反应扩散系统是一个在自然界中产生各种动力学现象的化学复杂系统。在这项工作中，我们提出了一种方法来构建电气RD系统。RD系统可以看作是一系列相互作用的化学非线性振子的集合，因此我们可以用电振子代替化学振子来构造电RD系统。我们使用的电振荡器，单电子电路，产生库仑阻塞现象引起的非线性振荡。RD系统中的扩散作用可以通过振荡器之间的电容耦合来模仿。通过将耦合振荡器排列成网络，我们可以构造单电子RD系统并描述其操作。计算机模拟表明，该系统产生的电耗散结构，或动画的节点电位在电路中的时空模式，这是一个类似于化学RD系统的特性。我们通过计算机模拟表明，该设备产生节点电压的动画时空模式，例如，一种类似于细胞黏菌菌落的旋转螺旋模式，以及一种让我们想起细胞分裂的分裂和繁殖模式。