Quantum simulation mimics how light bends in complex materials

The work reduces the wave equation in an inhomogeneous material to the form of the Schrödinger equation, allowing for simulation on a quantum computer. This approach was presented by successfully modeling the propagation of a one-dimensional Gaussian beam through a lens, and demonstrating the resulting spherical aberration. The team constructed beam propagator operators using an efficient block-encoding method, enabling simulation of diverse optical setups. The algorithm accurately modeled spherical aberration, a distortion occurring when light passes through a lens, demonstrating its capacity to predict complex optical behavior. This simulation relied on reducing the wave equation governing light propagation in uneven materials to a form mirroring the Schrödinger equation, a cornerstone of quantum mechanics. This reduction enabled the use of a quantum computer to simulate wave optical dynamics, a previously challenging task. The work establishes a significant improvement in computational capacity…