Implementing Quantum Search Algorithm with Metamaterials

TL;DR

This paper demonstrates a novel metamaterial design that simulates a quantum search algorithm by manipulating wavefronts, potentially advancing wave-based signal processing technologies.

Contribution

It introduces a 3D-printed metamaterial structure that emulates quantum search behavior using electromagnetic wave propagation.

Findings

Metamaterials can perform quantum search-like wave processing.

The designed structure focuses waves on marked positions after iterative propagation.

The approach opens new avenues for wave-based quantum simulation and signal processing.

Abstract

Metamaterials, artificially structured electromagnetic (EM) materials, have enabled the realization of many unconventional electromagnetic properties not found in nature, such as negative refractive index, magnetic response, invisibility cloaking and so on. Based on these man-made materials with novel EM properties, various devices have been designed and realized. However, quantum analog devices based on metamaterials have not been achieved so far. Here we designed and printed metamaterials to perform quantum search algorithm. The structures, comprising of an array of two-dimensional (2D) sub-wavelength air holes with different radii perforated on the dielectric layer, have been fabricated by using 3D printing technique. When an incident wave enters in the designed metamaterials, the profile of beam wavefront is processed iteratively as it propagates through the metamaterial periodically. After roundtrips, precisely the same as the efficiency of quantum search algorithm, searched items will be found with the incident wave all focusing on the marked positions. Such a metamaterial-based quantum searching simulator may lead to remarkable achievements in wave-based signal processors.