Simulating complex networks in phase space: Gaussian boson sampling
Peter D. Drummond, Bogdan Opanchuk, Alexander Dellios, Margaret D., Reid
TL;DR
This paper presents a phase-space simulation method for Gaussian boson sampling that verifies correlations in quantum photonic networks, matching experimental data and enabling the simulation of large-scale entanglement.
Contribution
It introduces a novel phase-space simulation approach for GBS, capable of handling large modes and verifying complex quantum correlations.
Findings
Simulation matches experimental correlations up to 100th order
Able to simulate networks with over 16,000 modes
Demonstrates simulation of genuine multipartite entanglement
Abstract
We show how phase-space simulations of Gaussian quantum states in a photonic network permit verification of measurable correlations of Gaussian boson sampling (GBS) quantum computers. Our results agree with experiments for up to 100-th order correlations, provided decoherence is included. We extend this to more than 16,000 modes, and describe how to simulate genuine multipartite entanglement.
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Taxonomy
TopicsQuantum Information and Cryptography · Quantum Computing Algorithms and Architecture · Quantum Mechanics and Applications