Prof. Kae Nemoto

Okinawa Institute of Science and Technology Graduate University, Japan

Abstract

The physical challenge associated with the realization of quantum communication systems is in its distance, whereas quantum computation faces the challenge of the system size. These two challenges are physically different and our approaches to realize them are also different. In quantum communication, we usually require quantum interfaces between light and matter qubits and quantum memories to overcome the communication distance. Although quantum information transfer between light and matter qubits has been experimentally demonstrated, it is still difficult to achieve the efficiency required for quantum communication. In this talk, we review the requirements for quantum devices as the building blocks for quantum communication. Based on these scalable quantum devices, we describe an architecture for quantum communication systems. One of the most feasible applications for quantum communication systems is quantum key distribution, however the essence of quantum communication is the capability to send quantum states over a distance. This allows us to quantum mechanically connect quantum systems in distance and hence to extend our quantum technology in its size as well as the distance. Quantum networking can integrate all quantum technologies as well as classical ICT. Hence quantum networks could serve as a quantum technology platform in the future. At each stage of the development of quantum network technology, we can expect different applications to emerge. In this talk we discuss the step-by-step hardware development required and potential network applications.

Biography

Kae Nemoto is a professor at Okinawa Institute of Science and Technology and the Center Director for OIST Center for Quantum Technologies. She is also a professor at the National Institute of Informatics (NII) in Tokyo, where she serves as the director of the Global Research Center for Quantum Information Science and the co-director of the Japanese-French Laboratory for Informatics (JFLI). Her research is focused around quantum computation and machine learning, architecture for quantum computer and devices, quantum networks, and complex systems. She is a Fellow of both the IoP (UK) and the APS (US).