Entanglement Purification by Integrated Silicon Photonics

TL;DR

This paper demonstrates the first on-chip deterministic entanglement purification using silicon photonics, showing improved state fidelity under simulated error conditions, advancing integrated quantum communication technologies.

Contribution

It introduces a novel integrated silicon photonics approach for deterministic entanglement purification, with experimental simulation of error correction on-chip.

Findings

Fidelity improved from 0.71 to 0.82 under 20% bit-flip error

First demonstration of on-chip deterministic entanglement purification

Simulation of error correction on silicon photonics chip

Abstract

We demonstrate the first on-chip deterministic entanglement purification based on silicon photonics. To evaluate the purification performance, we simulate the bit-flip and phase-flip errors by reconfigurable circuits on chip. The state fidelity improves from 0.71 to 0.82 under a 20% bit-flip error. rate