Continuous-variable spatio-spectral quantum networks in nonlinear photonic lattices
arXiv:2504.06229 · doi:10.1103/bgls-md94
Abstract
Multiplexing information in different degrees of freedom and use of integrated and fiber-optic components are natural solutions to the scalability bottleneck in optical quantum communications and computing. However, for bulk-optics systems, where size, cost, stability, and reliability are factors, this remains either impractical or highly challenging to implement. In this paper we present a framework to engineer continuous-variable entanglement produced through nondegenerate spontaneous parametric down-conversion in χ^(2) nonlinear photonic lattices in spatial and spectral degrees of freedom that can solve the scalability challenge. We show how spatio-spectral pump shaping produce cluster states that are naturally distributable in quantum communication networks and a resource for measurement-based quantum computing.
12 pages, 5 figures; in v2 new figures added and discussion improved
References in corpus (41)
- Quantum information with continuous variables
- Universal Quantum Computation with Continuous-Variable Cluster States
- Ultrahigh-efficiency second-harmonic generation in nanophotonic PPLN waveguides
- Wavelength-Multiplexed Quantum Networks with Ultrafast Frequency Combs
- Detecting genuine multipartite continuous-variable entanglement
- Time-Domain Multiplexed 2-Dimensional Cluster State: Universal Quantum Computing Platform
- Deterministic generation of a two-dimensional cluster state
- Modes and states in Quantum Optics
- Blueprint for a Scalable Photonic Fault-Tolerant Quantum Computer
- Pulsed squeezed light: simultaneous squeezing of multiple modes
- Graphical calculus for Gaussian pure states
- Non-Gaussian quantum states of a multimode light field
- Theory of quantum frequency conversion and type-II parametric down-conversion in the high-gain regime
- Theory of Two-Photon Interactions with Broadband Down-Converted Light and Entangled Photons
- Quantum theory of Synchronously Pumped type I Optical Parametric Oscillators: characterization of the squeezed supermodes
- Review of Distributed Quantum Computing. From single QPU to High Performance Quantum Computing
- Squeezing at a telecom wavelength, a compact and fully guided-wave approach
- Integrated Quantum Optical Phase Sensor
- Spontaneous Parametric Down-Conversion and Quantum Walks in Arrays of Quadratic Nonlinear Waveguides
- Over-8-dB squeezed light generation by a broadband waveguide optical parametric amplifier toward fault-tolerant ultra-fast quantum computers
- Resources for bosonic quantum computational advantage
- Tailoring Non-Gaussian Continuous-Variable Graph States
- Versatile engineering of multimode squeezed states by optimizing the pump spectral profile in spontaneous parametric down-conversion
- Spatio-spectral characteristics of parametric down-conversion in waveguide arrays
- Programmable high-dimensional Hamiltonian in a photonic waveguide array
- Spectrally shaped and pulse-by-pulse multiplexed multimode squeezed states of light
- Generation of three-dimensional cluster entangled state
- Quantum state engineering in arrays of nonlinear waveguides
- Multimode Squeezed State for Reconfigurable Quantum Networks at Telecommunication Wavelengths
- Continuous variable multimode quantum states via symmetric group velocity matching
- Programmable on-chip nonlinear photonics
- Spatiotemporal graph states from a single optical parametric oscillator
- Generator of spatial evolution of the electromagnetic field
- Nonlinear Domain Engineering for Quantum Technologies
- Minimum resources for versatile continuous variable entanglement in integrated nonlinear waveguides
- Tunable Generation of Spatial Entanglement in Nonlinear Waveguide Arrays
- Coupling quasi-phase matching: entanglement buildup in nonlinear waveguide arrays
- Arbitrary control over multimode wave propagation for machine learning
- Supermode-based second harmonic generation in a nonlinear interferometer
- Quantum-controlled cluster states
- Few-mode squeezing in type-I parametric downconversion by complete group velocity matching