Quantum arbitrary waveform generator

TL;DR

This paper introduces a novel architecture for a quantum arbitrary waveform generator capable of producing complex, non-classical quantum light states at high repetition rates, advancing quantum communication and computing technologies.

Contribution

The paper presents a new architecture for Q-AWGs that operate semi-deterministically at GHz rates, enabling generation of previously unachievable quantum light waveforms.

Findings

Demonstrated generation of highly non-classical states with new waveforms

Achieved operation at over GHz repetition rates

Paved the way for advanced quantum computing applications

Abstract

Controlling the waveform of light is the key for a versatile light source in classical and quantum electronics. Although pulse shaping of classical light is a mature technique and has been used in various fields, more advanced applications would be realized by a light source that generates arbitrary quantum light with arbitrary temporal waveform. We call such a device a quantum arbitrary waveform generator (Q-AWG). The Q-AWG must be able to handle versatile quantum states of light, which are fragile. Thus, the Q-AWG requires a radically different methodology from classical pulse shaping. In this paper, we invent an architecture of Q-AWGs that can operate semi-deterministically at a repetition rate over GHz in principal. We demonstrate its core technology via generating highly non-classical states with waveforms that have never been realized before. This result would lead to powerful quantum technologies based on Q-AWGs such as practical optical quantum computing.