On-chip generation and collectively coherent control of the superposition of the whole family of Dicke states

Abstract

Integrated quantum photonics has recently emerged as a powerful platform for generating, manipulating, and detecting entangled photons. Multipartite entangled states lie at the heart of the quantum physics and are the key enabling resources for scalable quantum information processing. Dicke state is an important class of genuinely entangled state, which has been systematically studied in the light-matter interactions, quantum state engineering and quantum metrology. Here, by using a silicon photonic chip, we report the generation and collectively coherent control of the entire family of four-photon Dicke states, i.e. with arbitrary excitations. We generate four entangled photons from two microresonators and coherently control them in a linear-optic quantum circuit, in which the nonlinear and linear processing are achieved in a chip-scale device. The generated photons are in telecom band, which lays the groundwork for large-scale photonic quantum technologies for multiparty networking and metrology.

19 pages, 4 figures in the main text and 13 figures in the Supplemental Material

References in corpus (12)

• Integrated Photonic Quantum Technologies
• Scalable multi-particle entanglement of trapped ions
• Resource-efficient linear optical quantum computation
• Topological fault-tolerance in cluster state quantum computation
• Chip-to-chip quantum teleportation and multi-photon entanglement in silicon
• Experimental entanglement of a six-photon symmetric Dicke state
• Experimental Observation of Four-Photon Entangled Dicke State with High Fidelity
• Probing multimode squeezing with correlation functions
• Near-ideal spontaneous photon sources in silicon quantum photonics
• Distributed quantum phase estimation with entangled photons
• Demonstrating W-type Entanglement of Dicke-States in Resonant Cavity Quantum Electrodynamics
• Generalized parity measurements

Cited by in corpus (6)

• Quantum Teleportation from Telecom Photons to Erbium-ion Ensembles
• Efficient preparation of Dicke states
• Entanglement distribution over metropolitan fiber using an on-chip broadband polarization entangled photon source
• Observation of quantum nonlocality in Greenberger-Horne-Zeilinger entanglement on a silicon chip
• Equally entangled multiqubit states
• Linear Optical Schemes to Postselect High-Dimensional Dicke States