Nonlinear optics Quantum computer It is a quantum computer based on Photonics and Nonlinear opticscrystal working at room temperature,. It is used for information and networking with nonlinear optics. It is successfully completed with circuit QED, with integrated sources of photon quantum state using nonlinear optics. It is more energy efficient and much less susceptible to noise .It will result in better GPU,TPU/IPU or FPGA. A group from University of Vienna is working on nonlinear optics Quantum gate. Another group from Northwestern University is working on it. Columbia research group also working on this developed it in 2D technology.