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

这项工作的目的是提出一个类似于反应扩散系统的单电子装置，这是一个在自然界中产生各种动态现象的化学复杂系统。在这项工作中，我们提出了一种构建电气研发系统的方法。一个研发系统可以看作是一个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建电研发系统。我们使用由库仑阻塞现象引起非线性振荡的单电子电路作为电振荡器。扩散在RD系统中的作用可以通过振子之间的电容耦合来模拟。通过将耦合振荡器排列成一个网络，我们可以构造一个单电子RD系统并描述其运行。计算机模拟表明，该系统在电路中产生了电耗散结构或节点电位的动画时空模式，这与化学RD系统的特性相似。我们通过计算机模拟展示了该设备产生节点电压的动画时空模式，例如，类似于细胞黏菌群的旋转螺旋模式和让我们想起细胞分裂的分裂和倍增模式。

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.