Theoretical study on Intrinsic Josephson Junction Quantum Metamaterial for novel optical devices

2016 Fiscal Year Final Research Report

• Project/Area Number: 26790062
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Optical engineering, Photon science
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: Hidehiro Asai 国立研究開発法人産業技術総合研究所, ナノエレクトロニクス研究部門, 研究員 (00722290)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: メタマテリアル / 量子光学 / 超伝導 / 国際情報交換

Outline of Final Research Achievements

In this proposal, we have investigated electromagnetic response of novel metamaterial Intrinsic Josephson Junction Quantum Metamaterial (IJJQM) which utilize intrinsic Josephson junctions in high-Tc　superconductors.　On the basis of a simple toy model for IJJQM, we found unique characteristics of quantum metamaterial such as the chaotic dynamics of the qubits and the lasing associated with correlated behavior of the qubits. We also clarified that the electromagnetic properties of intrinsic Josephson junctions are highly tunable by external local heating.
Through the above studies, we have constructed basic theory for electromagnetic response of IJJQM and showed that IJJQM is promising as a novel optical device in next generation.

Free Research Field

計算物理学、物性物理学、材料工学、超伝導工学、半導体デバイス工学