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

• URL: http://arxiv.org/abs/2411.07491v1
• Date: Tue, 12 Nov 2024 02:25:45 GMT
• Title: Generation of Tunable Three-Photon Entanglement in Cubic Nonlinear Coupled Waveguides
• Authors: Miguel Bacaoco, Max Galettis, James Huang, Denis Ilin, Alexander Solntsev,
• Abstract summary: We theoretically investigate the generation of three-photon states with spatial entanglement in cubic nonlinear coupled waveguides. This work demonstrates an integrated source of three-photon spatial entanglement on a simple chip, offering additional reconfigurability for advanced multiphoton quantum applications.
• Score: 39.745906106570985
• License:
• Abstract: 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.

Related papers

• Tunable generation of spatial entanglement in nonlinear waveguide arrays [0.0]
  spatially entangled photon pairs based on parametric down-conversion in AlGaAs nonlinear waveguides arrays. We use a double-pump configuration to engineer the output quantum state and implement various types of spatial correlations. This demonstration, at room temperature and telecom wavelength, illustrates the potential of continuously-coupled systems.
  arXiv  Detail & Related papers  (2024-05-13T20:55:54Z)
• Independent operation of two waveguide-integrated quantum emitters [2.658888962967589]
  We demonstrate the resonant excitation of two quantum dots in a photonic integrated circuit for on-chip single-photon generation. Our work solves an outstanding challenge in quantum photonics by realizing the key enabling functionality of how to scale-up deterministic single-photon sources.
  arXiv  Detail & Related papers  (2022-10-18T13:11:19Z)
• Silicon nitride waveguides with intrinsic single-photon emitters for integrated quantum photonics [97.5153823429076]
  We show the first successful coupling of photons from intrinsic single-photon emitters in SiN to monolithically integrated waveguides made of the same material. Results pave the way toward the realization of scalable, technology-ready quantum photonic integrated circuitry.
  arXiv  Detail & Related papers  (2022-05-17T16:51:29Z)
• Generation of polarization entanglement via the quantum Zeno effect [0.0]
  We present a method for establishing polarization entanglement between two initially unentangled photons in coupled waveguides via the quantum Zeno effect. Our findings offer a powerful quantum state engineering approach for photonic quantum information technologies.
  arXiv  Detail & Related papers  (2022-05-04T20:33:13Z)
• Heisenberg treatment of multiphoton pulses in waveguide QED with time-delayed feedback [62.997667081978825]
  We propose a projection onto a complete set of states in the Hilbert space to decompose the multi-time correlations into single-time matrix elements. We consider the paradigmatic example of a two-level system that couples to a semi-infinite waveguide and interacts with quantum light pulses.
  arXiv  Detail & Related papers  (2021-11-04T12:29:25Z)
• Exploring complex graphs using three-dimensional quantum walks of correlated photons [52.77024349608834]
  We introduce a new paradigm for the direct experimental realization of excitation dynamics associated with three-dimensional networks. This novel testbed for the experimental exploration of multi-particle quantum walks on complex, highly connected graphs paves the way towards exploiting the applicative potential of fermionic dynamics in integrated quantum photonics.
  arXiv  Detail & Related papers  (2020-07-10T09:15:44Z)
• Hyperentanglement in structured quantum light [50.591267188664666]
  Entanglement in high-dimensional quantum systems, where one or more degrees of freedom of light are involved, offers increased information capacities and enables new quantum protocols. Here, we demonstrate a functional source of high-dimensional, noise-resilient hyperentangled states encoded in time-frequency and vector-vortex structured modes. We generate highly entangled photon pairs at telecom wavelength that we characterise via two-photon interference and quantum state tomography, achieving near-unity visibilities and fidelities.
  arXiv  Detail & Related papers  (2020-06-02T18:00:04Z)
• Engineering continuous and discrete variable quantum vortex states by nonlocal photon subtraction in a reconfigurable photonic chip [0.0]
  We study the production of entangled two- and N-mode quantum states of light in optical waveguides. We propose a quantum photonic circuit that produces a reconfigurable superposition of photon subtraction on two single-mode squeezed states.
  arXiv  Detail & Related papers  (2020-04-11T11:11:16Z)
• Coupling colloidal quantum dots to gap waveguides [62.997667081978825]
  coupling between single photon emitters and integrated photonic circuits is an emerging topic relevant for quantum information science and other nanophotonic applications. We investigate the coupling between a hybrid system of colloidal quantum dots and propagating gap modes of a silicon nitride waveguide system.
  arXiv  Detail & Related papers  (2020-03-30T21:18:27Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.