Quantum sensing

We are currently in the midst of the second quantum revolution. Quantum computers, quantum communications, and quantum sensing are being active topics. We would like to find our own answer to the question, "What role should chemistry play in the quantum age?"

We find a hint of the answer in the interface between quantum and life. Many quantum phenomena function only in a clean and dry environment, while life phenomena are in a wet and mixed environment. It is expected that quantum technology can be applied to life phenomena to understand and control them with unprecedented precision, but this is not an easy task. This is where chemistry can contribute. We believe that it is possible to give molecules the desired quantum properties through the power of chemistry and use them to understand and control life phenomena, in other words, to connect quantum and life through chemistry. We hope that this will create a new field of activity for chemistry, and a new area of chemistry will be born.

We use singlet fission as a way to impart quantum properties to molecules. Singlet fission is a phenomenon in which a singlet exciton splits into two triplet excitons, and is the reverse process of photon upconversion using TTA. This process is being actively studied around the world.

We have focused on singlet fission as a unique method to generate multi-excitons called a quintet, in which two excited triplets are strongly exchange-coupled. We are working on the construction of future quantum technology by developing our original molecular design.