Achievement

Recently our IGERT team advanced the hybrid degrees-of-freedom of photons for chip-scale quantum information processing. High-density packed information is encoded in multiple bits per pair of photons, towards quantum secure communications.

While commonly known for one bit of information (on/off intensity) per photon, the photon actually comprise simultaneously of polarization, temporal, frequency-energy states in discrete and continuous variables. Unique protocols were developed for encode significantly more information per photon pair. The initial theoretical and experimental results are under review at major journals currently. This is a cross-disciplinary work between device engineering, information science and theory, and optical physics and applied physics.