Implementation of programmable photonic one qubit quantum gates using intensity and phase encoding jointly

Quantum computing is the latest way in super-fast data processing and computation in modern time. Quantum computers rely on qubits to process the information in the desired way. Many single qubits, two qubits and multiple qubits quantum gates are used in quantum computing. Single qubit quantum gates are already developed in different ways. Here, in the proposed study a programmable photonic scheme is established for implementing different one-qubit quantum gates using the intensity and phase encoding technique. This scheme is developed by using the lithium-niobate (LiNbO3)-based electro-optic material. Light polarized in a particular direction when passes through the electro-optic modulator with the application of the electric field then the refractive index changes with the applied biasing signal. This change in refractive index leads to generate phase modulation at the output signal. The desired phase change can be obtained by using the suitable biasing voltage across the electro-optic modulator, which is used to design the programmable system.

Automated summary

In this study, a programmable photonic scheme is proposed for implementing different one-qubit quantum gates using the intensity and phase encoding technique. This scheme uses the electro-optic material lithium-niobate (LiNbO3) to generate phase modulation by changing the refractive index, achieving the desired phase change.