2023 Fiscal Year Final Research Report
Control of room temperature polariton toward neuromorphic device applications
| Project/Area Number |
22K18794
|
|---|
| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
|
| Allocation Type | Multi-year Fund |
|---|
| Review Section |
Medium-sized Section 21:Electrical and electronic engineering and related fields
|
|---|
| Research Institution | Kyoto Institute of Technology |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2022-06-30 – 2024-03-31
|
| Keywords | ポラリトン / 微小共振器 / 鉛ハライドペロブスカイト / ニューロモルフィックデバイス |
|---|
| Outline of Final Research Achievements |
The aim of this study is to establish the fundamental physics for the use of polariton states, which are coupled quantum states of photons and excitons, for the creation of neuromorphic devices and quantum simulators with excellent integration and low power consumption. In a microcavity device using an all-inorganic lead halide perovskite material as the active layer, which is capable of forming an energy condensed phase at room temperature, we have demonstrated that individual condensed states can be formed between two orthogonal polariton states and that they have interaction effects with each other. We also demonstrated interaction effects between spatially adjacent condensed phases, which is expected to be a fundamental principle for a completely new concept of neuromorphic devices and quantum simulators.
|
| Free Research Field |
光エレクトロニクス
|
| Academic Significance and Societal Importance of the Research Achievements |
ソサイエティ5.0を支える人工知能システムにはさらなる発展が求められており、ニューロモルフィック素子や量子シミュレータの技術革新が不可欠である。これらハードウェアの構成要素には、メモリ機能としての状態双安定性と、情報伝達のためのエレメント間相互作用を持つことが条件となり、現在はアナログ電子回路や強誘電体、抵抗変化型酸化物などのデバイスが検討されている。今後の更なる発展に向けては、大規模集積化や省電力化が重要になる。この課題解決に向けて、ポラリトン状態を用いた手法では大規模化への自由度が高い、発熱抑制が期待できるなどの大きなメリットがある。
|
