Highly-sensitive quantum sensing using nitrogen-vacancy centers in diamond – creation and applications –
May 1, 2016
Junko Ishi-hayase, Keio University
Negatively-charged nitrogen-vacancy (NV) centers in diamond is one of promising candidates for qubit and quantum sensors, because its electric spin states can be easily initialized, manipulated, and read-out by irradiating light and microwave with long coherence time. Hayase grout at Keio university aims to realize highly-sensitive quantum sensors utilizing quantum coherence of electric spins in diamond.
It is important to control positon and orientation of NV centers and to elongate coherence time of NV centers for improving sensitivity of quantum sensors. Hayase group has create new
Highly sensitive motion detection and vibration amplification in a mechanical resonator coupled with a semiconductor quantum dot
April 12, 2016
Hiroshi Yamaguchi, NTT Basic Research Laboratories
We demonstrated highly sensitive motion detection in a mechanical resonator using the quantum transport in a semiconductor quantum dot. The mechanical resonators are widely used for various sensors in order to detect minute mass and weak force.