Experimental generation of 8.4 dB entangled state with an optical cavity involving a wedged type-II nonlinear crystal
arXiv:1502.07416 · doi:10.1364/OE.23.004952
Abstract
Entangled state of light is one of the essential quantum resources in quantum information science and technology. Especially, when the fundamental principle experiments have been achieved in labs and the applications of continuous variable quantum information in the real world are considered, it is crucial to design and construct the generation devices of entangled states with high entanglement and compact configuration. We have designed and built an efficient and compact light source of entangled state, which is a non-degenerate optical parametric amplifier (NOPA) with the triple resonance of the pump and two subharmonic modes. A wedged type-II KTP crystal inside the NOPA is used for implementing frequency-down-conversion of the pump field to generate the optical entangled state and achieving the dispersion compensation between the pump and the subharmonic waves. The EPR entangled state of light with quantum correlations of 8.4 dB for both amplitude and phase quadratures are experimentally produced by a single NOPA under the pump power of 75 mW.
References in corpus (19)
- Experimental quantum teleportation
- Experimental Realization of Teleporting an Unknown Pure Quantum State via Dual Classical and Einstein-Podolski-Rosen Channels
- Teleportation of Quantum States
- Multipartite entanglement for continuous variables: A quantum teleportation network
- Experimental Preparation of Quadripartite Cluster and GHZ Entangled States for Continuous Variables
- Experimental verification of a fully inseparable tripartite continuous-variable state
- High-fidelity teleportation beyond the no-cloning limit and entanglement swapping for continuous variables
- Experimental generation of four-mode continuous-variable cluster states
- Remote creation of hybrid entanglement between particle-like and wave-like optical qubits
- Squeezed light at 1550 nm with a quantum noise reduction of 12.3 dB
- Experimental preparation of eight-partite linear and two-diamond shape cluster states for photonic qumodes
- A characterization of continuous variable entanglement
- High-fidelity continuous-variable quantum teleportation toward multi-step quantum operations
- Experimental demonstration of entanglement assisted coding using a two-mode squeezed vacuum state
- Compact Source of EPR Entanglement and Squeezing at Very Low Noise Frequencies
- Strong Einstein-Podolsky-Rosen entanglement from a single squeezed light source
- Experimental generation of 6 dB continuous variable entanglement from a nondegenerate optical parametric amplifier
- Cascaded Entanglement Enhancement
- Experimental generation of genuine four-partite entangled states with total three-party correlation for continuous variables
Cited by in corpus (20)
- Secure continuous variable quantum teleportation and Einstein-Podolsky-Rosen steering
- Multipartite Gaussian steering: monogamy constraints and quantum cryptography applications
- Demonstration of monogamy relations for Einstein-Podolsky-Rosen steering in Gaussian cluster states
- Quantum entanglement swapping between two multipartite entangled states
- Entanglement-Based Quantum Information Technology
- Creation and Measurement of Broadband Squeezed Vacuum from a Ring Optical Parametric Oscillator
- Manipulating the direction of Einstein-Podolsky-Rosen steering
- Feedback Control of Two-mode Output Entanglement and Steering in Cavity Optomechanics
- Multipartite Einstein-Podolsky-Rosen steering sharing with separable states
- Generating quantum correlated twin beams by four-wave mixing in hot cesium vapor
- An efficient, tunable, and robust source of narrow-band photon pairs at the Rb D1 line
- Compact sub-kilohertz low-frequency quantum light source based on four-wave mixing in cesium vapor
- Experimental generation of tripartite polarization entangled states of bright optical beams
- Higher Order Mode Entanglement in a Type II Optical Parametric Oscillator
- Quantification of quantum steering in a Gaussian Greenberger-Horne-Zeilinger state
- Quantum beam splitter for orbital angular momentum of light: quantum correlation by four-wave mixing operated in a nonamplifying regime
- Effect of incoherent pump on two-mode entanglement in optical parametric generation
- Dependence of the photon statistics of down-converted field-modes on the photon statistics of pump field-mode
- Synthesis of the Einstein-Podolsky-Rosen entanglement in a sequence of two single-mode squeezers
- Quantum enhanced optical phase estimation with a squeezed thermal state