Continuous variable entanglement on a chip
arXiv:1505.07895 · doi:10.1038/nphoton.2015.42
Abstract
Encoding quantum information in continuous variables (CV)---as the quadrature of electromagnetic fields---is a powerful approach to quantum information science and technology. CV entanglement---light beams in Einstein-Podolsky-Rosen (EPR) states---is a key resource for quantum information protocols; and enables hybridisation between CV and single photon discrete variable (DV) qubit systems. However, CV systems are currently limited by their implementation in free-space optical networks: increased complexity, low loss, high-precision alignment and stability, as well as hybridisation, demand an alternative approach. Here we show an integrated photonic implementation of the key capabilities for CV quantum technologies---generation and characterisation of EPR beams in a photonic chip. Combined with integrated squeezing and non-Gaussian operation, these results open the way to universal quantum information processing with light.
References in corpus (23)
- Experimental quantum teleportation
- Quantum information with continuous variables
- Gaussian Quantum Information
- Photonic quantum technologies
- Peres-Horodecki separability criterion for continuous variable systems
- Inseparability criterion for continuous variable systems
- Optical Quantum Computing
- Silica-on-Silicon Waveguide Quantum Circuits
- High Speed and High Efficiency Travelling Wave Single-Photon Detectors Embedded in Nanophotonic Circuits
- Schroedinger cat-like states by conditional measurements on a beam-splitter
- Manipulating multi-photon entanglement in waveguide quantum circuits
- Waveguide single-photon detectors for integrated quantum photonic circuits
- Generating, manipulating and measuring entanglement and mixture with a reconfigurable photonic circuit
- Deterministic quantum teleportation of photonic quantum bits by a hybrid technique
- Observation of -9 dB quadrature squeezing with improvement of phase stability in homodyne measurement
- Quantum teleportation of light beams
- Remote creation of hybrid entanglement between particle-like and wave-like optical qubits
- Entangling quantum and classical states of light
- 7 dB quadrature squeezing at 860 nm with periodically-poled KTiOPO4
- High-fidelity operation of quantum photonic circuits
- Generation of continuous-wave broadband Einstein-Podolsky-Rosen beams using periodically-poled lithium niobate waveguides
- Quantum mode filtering of non-Gaussian states for teleportation-based quantum information processing
- Efficient generation of highly squeezed light and second harmonic wave with periodically poled MgO:LiNbO_3
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- Quantum photonics at telecom wavelengths based on lithium niobate waveguides
- Semiconductor devices for entangled photon pair generation: a review
- Recent advances on integrated quantum communications
- An On-chip Homodyne Detector for Measuring Quantum States and Generating Random Numbers
- Continuous-wave 6-dB-squeezed light with 2.5-THz-bandwidth from single-mode PPLN waveguide
- 9~GHz measurement of squeezed light by interfacing silicon photonics and integrated electronics
- Generation of optical Schrödinger's cat states by generalized photon subtraction
- Squeezing at a telecom wavelength, a compact and fully guided-wave approach
- Entanglement-Based Quantum Information Technology
- Gaussian states of continuous-variable quantum systems provide universal and versatile reservoir computing
- Chip-based squeezing at a telecom wavelength
- Efficient entanglement criteria for discrete, continuous, and hybrid variables
- Nonlinear integrated quantum photonics with AlGaAs
- Quantifying entanglement in a 68-billion dimensional quantum state space
- Building a large-scale quantum computer with continuous-variable optical technologies
- A waveguide cavity resonator source of squeezing
- Experimental observation of inter-orbital coupling
- Wigner Function Tomography via Optical Parametric Amplification
- Quality of Spatial Entanglement Propagation
- Coherent perfect absorption of quantum light
- Semi-device-independent quantum random number generator with a broadband squeezed state of light
- Squeezer-based pulsed optomechanical interface
- Resonance-dominant optomechanical entanglement in open quantum systems
- Continuous-variable entanglement of two bright coherent states that never interacted
- Fast Hadamard transforms for compressive sensing of joint systems: measurement of a 3.2 million-dimensional bi-photon probability distribution
- Continuous-variable entanglement in a two-mode lossy cavity: an exact solution
- Detection of squeezing by on-chip glass-integrated homodyne analyzer
- Distillation of Squeezing using a pulsed engineered PDC source
- Optimization of a Lossy Microring Resonator System for the Generation of Quadrature-Squeezed States
- Minimum resources for versatile continuous variable entanglement in integrated nonlinear waveguides
- Universal Dissipationless Dynamics in Gaussian Continuous-variable Open Systems
- Double Slit with an Einstein-Podolsky-Rosen Pair
- Efficient verification of bosonic quantum channels via benchmarking
- Squeezed state evolution and entanglement in lossy coupled resonator optical waveguides
- Production of genuine multimode entanglement in circular waveguides with long-range interactions
- Environment-assisted bosonic quantum communications
- Coupling quasi-phase matching: entanglement buildup in nonlinear waveguide arrays
- Kerr-magnon-assisted asymptotic stationary photon-phonon squeezing
- Counterpropagating continuous variable entangled states in lossy coupled-cavity optical waveguides
- Controlling the biphoton orbital angular momentum eigenmodes using asymmetric pump vortex beam
- Locally optimal control of continuous variable entanglement
- On-demand continuous-variable quantum entanglement source for integrated circuits
- A simple way to incorporate loss when modelling multimode entangled state generation
- Engineering continuous and discrete variable quantum vortex states by nonlocal photon subtraction in a reconfigurable photonic chip
- Quantum light propagation in longitudinally inhomogeneous media as a spatial Lewis-Ermakov physical invariance
- Relationship between the field local quadrature and the quantum discord of a photon-added correlated channel under the influence of scattering and phase fluctuation noise
- Experimental pre-assessing entanglement in Gaussian states mixing
- Comparison of semiclassical and quantum models of a two-level atom-cavity QED system in the strong coupling regime
- Position-momentum entangled photon pairs in non-linear wave-guides and transmission lines
- Dynamically stable two-mode squeezing in cavity optomechanics
- Engineering Strong Beamsplitter Interaction between Bosonic Modes via Quantum Optimal Control Theory
- Non-Markovian Reactivation of Quantum Relays
- Non classical light in Jx photonic lattice