Dynamical Casimir Effect for Gaussian Boson Sampling

TL;DR

This paper demonstrates that the Dynamical Casimir Effect in multimode resonators can implement a Gaussian boson sampler, enabling a classically hard quantum computational task and opening new avenues for quantum simulation.

Contribution

It shows how DCE can be used as a resource for Gaussian boson sampling, revealing its potential for quantum computational advantage.

Findings

DCE in multimode resonators implements Gaussian boson sampling.

The setup performs scattershot boson sampling, a classically hard problem.

DCE offers a new platform for quantum simulation.

Abstract

We show that the Dynamical Casimir Effect (DCE), realized on two multimode coplanar waveguide resonators, implements a gaussian boson sampler (GBS). The appropriate choice of the mirror acceleration that couples both resonators translates into the desired initial gaussian state and many-boson interference in a boson sampling network. In particular, we show that the proposed quantum simulator naturally performs a classically hard task, known as scattershot boson sampling. Our result unveils an unprecedented computational power of DCE, and paves the way for using DCE as a resource for quantum simulation.