Our group conducts experimental research using photons, quantum particles of light. Photon is an important concept for understanding quantum phenomena such as black-body radiation and the photo-electric effect. Nowadays, photons are utilized as a tool to explore the quantum world and are expected to be an essential resource for quantum communication, quantum computing, and quantum metrology. The primary goal of our group is to gain an understanding of counter-intuitive quantum phenomena involving quantum entanglement and quantum fluctuations and to apply it to develop new quantum applications.

Quantum entangled photons — generation, manipulation, and detection:

To explore the quantum world with photons, one should be able to generate, manipulate, and detect single and entangled photons on demand. By studying the fundamental physics of the operations of photons, we develop new photonic quantum technologies. Our ongoing study includes the generation and elimination of photonic entanglement via nonlinear optics, all-optical quantum storage of single and entangled photons, quantum manipulation of photons via linear optic quantum gates, and superconducting single-photon detectors.