Description of light and tera-hertz wave quantum-mechanical receiver circuits by nonlinear stochastic differential equation and building their circuit simulator models

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K06075
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Communication/Network engineering
• Research Institution: Hiroshima City University
• Principal Investigator: Fujisaka Hisato 広島市立大学, 情報科学研究科, 教授 (30305784)
• Co-Investigator(Kenkyū-buntansha): 桑田 精一 広島市立大学, 情報科学研究科, 准教授 (80275403) ; 田中 輝雄 広島市立大学, 情報科学研究科, 教授 (80227149)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 量子効果デバイス / 非線形回路 / 通信 / シミュレータモデル

Outline of Final Research Achievements

We exemplified a quantum mechanical receiver for Tera-hertz communications and described the detection and discrimination circuits in the receiver by classical mechanical stochastic ordinary differential equations. As a result, we represented the behavior of electrons in the circuits not by wave propagation but by random particle motion like that of electrons in a decoder circuit built of single-electron tunneling devices.
It enabled to model all the circuits in the receiver consistently and simulate whole the receiver circuits simultaneously. To validate the usefulness of the models, we estimated communication quality of a tera-hertz spread spectrum communication system.

Free Research Field

量子効果を基にした非線形通信回路のモデリング