Work

Quantum simulation of wave optics in weakly inhomogeneous media using block encoding

Year: 2026

Type: article

Abstract: We propose a quantum algorithm that simulates the propagation of a light field through a weakly inhomogeneous medium. In the paraxial approximation, the wave equation in an inhomogeneous material takes the form of the Schrödinger equation with a time-dependent Hamiltonian. This reduction is used to simulate wave optical dynamics on a quantum computer. Beam propagator operators for a short propagation distance are constructed using an efficient and flexible block encoding that enables the simulation of various optical setups. The algorithm is showcased by simulating the propagation of a one-dimensional Gaussian beam through a lens of finite thickness, and the resulting spherical aberration is demonstrated.

Source: Physical Review Research

DOI: 10.1103/snzq-fp39

Authors: Siavash Davani, Martin Gärttner, Falk Eilenberger

Institutions: Max Planck Society, Max Planck School of Photonics, Friedrich Schiller University Jena, Fraunhofer Institute for Applied Optics and Precision Engineering

Language: English

Topic: Quantum Computing Algorithms and Architecture

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,625