Scalable quantum photonics using quantum dots

Ravitej Uppu, Leonardo Midolo, Xiaoyan Zhou +2 more

Hui Wang, Timothy C. Ralph, Jelmer J. Renema +2 more

Joel Q. Grim, Allan S. Bracker, Maxim K. Zalalutdinov +8 more

We demonstrate scalable quantum interactions between quantum dots embedded in the same waveguide. The dots are tuned into resonance using laser-patterned strain with a step size down to the homogeneous linewidth and sub-micron spatial resolution.

Jihun Cha

Mohammad Hasan Aram, Sina Khorasani

We introduce a new scalable cavity quantum electrodynamics platform which can be used for quantum computing. This system is composed of coupled photonic crystal (PC) cavities which their modes lie on a Dirac cone in the whole super crystal band structure. Quantum information is stored in quantum dots that are positioned inside the cavities. We show if there is just one quantum dot in the system, energy as photon is exchanged between the quantum dot and the Dirac modes sinusoidally. Meanwhile the quantum dot becomes entangled with Dirac modes. If we insert more quantum dots into the system, they also become entangled with each other.

Stefano Paesani