Theoretical study on high-quality photon generation using the cavity QED effects

2015 Fiscal Year Final Research Report

• Project/Area Number: 25400325
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Condensed matter physics I
• Research Institution: Osaka University
• Principal Investigator: Ajiki Hiroshi 大阪大学, 工学(系)研究科(研究院), 教授 (60283735)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 量子もつれ光子対 / 励起子分子 / 共振器 / 励起子 / 励起子-光結合状態 / ドレスト状態 / 半導体ナノ構造 / 電磁界解析シミュレーション

Outline of Final Research Achievements

Entangled photon pairs are fundamental resources of the quantum information processing, such as the quantum cryptography, and quantum computing. We have theoretically studied optimal conditions to efficiently generate entangled photon pairs with high quality using semiconductor nanostructures embedded in a microcavity. In particular, we have revealed the optimal conditions for photon-pulse excitation, which enables us to generate entangled photon pairs on demand. We have also proposed semiconductor nano gap structures as a new system to generate entangled photon pairs with high purity.

Free Research Field

光物性理論、量子光学