### Observation of phonon modes in a bottle microresonator

2017.07.03

Takashi Yamamoto, Osaka University

Whispering-gallery-mode (WGM) resonators with various geometries have actively studied in the past two decades.

### Quantum metrology including state preparation and readout times

2017.06.29

Shane Dooley and Kae Nemoto, National Institute of Informatics

Frequency estimation is an important problem in the field of quantum metrology in which the probe system is a collection of $N$ qubits and the parameter of interest, $\omega$, is the frequency corresponding to the gap between the two qubit energy eigenvalues.

### 【Award】Associate professor Masahiro Nomura won The Young Scientist Award, The 44th International Symposium on Compound Semiconductors.

2017.06.01

Associate professor Masahiro Nomura, belonging to the University of Tokyo, won The Young Scientist Award, The 44th International Symposium on Compound Semiconductors(ISCS2017).

### Fabrication of hybrid structure of semiconductor quantum dot and two dimensional superlattice

2017.05.22

Kouichi Akahane, National Institute of Information and Communications Technology

The research group of Dr. Akahane, belonging to the National Institute of Information and Communications Technology (NICT), developed the technique to fabricate a hybrid structure of semiconductor quantum dot (QD) and two-dimensional (2D) superlattice by using molecular beam epitaxy.

### Triple-gated Quantum Point Contact

2017.03.15

Yoshiro Hirayama, Tohoku University

In the conventional quantum point contact (QPC), a ballistic one-dimensional (1D) channel is formed by applying a negative voltage to split-gates facing each other and constricting the channel between.