Light Interaction With a Space-Time-Modulated Josephson Junction Array and Application to Angular-Frequency Beam Multiplexing

TL;DR

This paper explores how space-time-modulated Josephson junction arrays can manipulate electromagnetic waves, enabling advanced angular-frequency beam multiplexing for applications in quantum computing, communications, and sensing.

Contribution

It introduces a novel mathematical framework for dynamic Josephson junction arrays and demonstrates their capability for four-dimensional light manipulation and beam multiplexing.

Findings

Enables angular-frequency beam multiplexing via space-time modulation

Provides a comprehensive model for wave propagation in Josephson junction arrays

Opens new avenues for electromagnetic field engineering in various technologies

Abstract

Josephson junctions, as pivotal components of modern technologies such as superconducting quantum computing, owe their prominence to their unique nonlinear properties at low temperatures. Despite their extensive use in static configurations, the study of dynamic Josephson junctions, particularly under space-time modulation, remains largely unexplored. This study investigates the interaction and transmission of electromagnetic waves through arrays of space-time-modulated Josephson junctions. A comprehensive mathematical framework is presented to model the propagation of electric and magnetic fields within and beyond these structures. We demonstrate how such dynamic arrays enable groundbreaking four-dimensional light manipulation, achieving angular-frequency beam multiplexing through a seamless integration of frequency conversion and beam-splitting functionalities. These advancements open new horizons for electromagnetic field engineering, with far-reaching implications for superconducting quantum technologies, next-generation wireless communications, biomedical sensing, and radar systems.