Quantum Algorithm Emulator for Implementation of Deutsch-Jozsa Algorithm in the THz region

A quantum algorithm emulator (QAE) consisting of a photonic metastructure is investigated in the terahertz regime to show the implementation of the Deutsch-Josza algorithm. The QAE design consists of silicon as the oracle subblock and a polyimide gradient-index (GRIN) lens as the Fourier Transform subblock. Through a machine learning approach using inverse design the geometry of the GRIN lens was optimized to enhance the interaction of incident light with the metamaterial.