Generation of Tunable Three-Photon Entanglement in Cubic Nonlinear Coupled Waveguides

Autor:	Bacaoco, Miguel, Galettis, Max, Huang, James, Ilin, Denis, Solntsev, Alexander
Rok vydání:	2024
Předmět:	Quantum Physics
Druh dokumentu:	Working Paper
Popis:	We theoretically investigate the generation of three-photon states with spatial entanglement in cubic nonlinear coupled waveguides using third-order spontaneous parametric down-conversion and quantum walks. Our approach involves independently pumping two coupled waveguides to generate a path-encoded three-photon Greenberger Horne Zeilinger (GHZ) state, which then evolves with complex spatial dynamics governed by coupling coefficients and phase mismatch. By appropriate parameter tuning, we demonstrate the generation of robust heralded Bell states, uniform states, and GHZ-like states at the chip output. This work demonstrates an integrated source of three-photon spatial entanglement on a simple chip, offering additional reconfigurability for advanced multiphoton quantum applications. Comment: 15 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2411.07491 Zobrazit plný text záznamu View this record from Arxiv