Entanglement and asymmetric steering over two octaves of frequency difference with cascaded harmonic generation
arXiv:1707.02537 · doi:10.1103/PhysRevA.96.063839
Abstract
We analyse a nonlinear optical system which uses cascaded nonlinearities to produce both second and fourth harmonic outputs from an input field at the fundamental frequency. Using fully quantum equations of motion, we show that the system produces quadrature squeezed outputs which exhibit bipartite entanglement, EPR-steering, and asymmetric steering across a two octave frequency range.
arXiv comment5 pages, 7 figures, theory
References in corpus (13)
- Peres-Horodecki separability criterion for continuous variable systems
- Inseparability criterion for continuous variable systems
- Steering, Entanglement, Nonlocality, and the EPR Paradox
- Quantum interface between light and atomic ensembles
- Experimental demonstration of quantum memory for light
- Observation of one-way Einstein-Podolsky-Rosen steering
- Asymmetric Gaussian steering: when Alice and Bob disagree
- Unitarily localizable entanglement of Gaussian states
- Asymmetric Gaussian harmonic steering in second harmonic generation
- Observation of entanglement between two light beams spanning an octave in optical frequency
- Bright bichromatic entanglement and quantum dynamics of sum frequency generation
- Unconditional entanglement interface for quantum networks
- Improved quantum correlations in second harmonic generation with a squeezed pump