Effect of an incoherent pump on two-mode entanglement in optical parametric generation

@article{Vintskevich2019EffectOA,
  title={Effect of an incoherent pump on two-mode entanglement in optical parametric generation},
  author={Stephen Vintskevich and Dmitry A. Grigoriev and Sergey N. Filippov},
  journal={Physical Review A},
  year={2019}
}
Pumping a nonlinear crystal by an intense radiation results in the optical parametric generation of photons in two modes (the signal and the idler). The quantized electromagnetic field in these modes is described by a continuous-variable quantum state, which is entangled if the pump is a coherent state produced by a laser. The signal and the idler modes remain populated by photons even if the pump becomes incoherent (dephased by a medium, superposed with a thermal state, or produced by an… 

Figures from this paper

Dependence of the photon statistics of down-converted field-modes on the photon statistics of pump field-mode

Using the zero time-delay second-order correlation function for studying the photon statistics, we investigate how the photon statistics of the field-modes generated by parametric down-conversion

Dependence of the photon statistics of down-converted field-modes on the photon statistics of the pump field-mode

Using the zero time-delay second-order correlation function for studying photon statistics, we investigate how the photon statistics of field-modes generated by the parametric down-conversion (PDC)

Towards Quantum Telescopes: Demonstration of a Two-Photon Interferometer for Quantum-Assisted Astronomy

: Classical optical interferometery requires maintaining live, phase-stable links between telescope stations. This requirement greatly adds to the cost of extending to long baseline separations, and

References

SHOWING 1-10 OF 133 REFERENCES

Experimental generation of 8.4 dB entangled state with an optical cavity involving a wedged type-II nonlinear crystal.

An efficient and compact light source of entangled state is designed, which is a non-degenerate optical parametric amplifier (NOPA) with the triple resonance of the pump and two subharmonic modes with quantum correlations of 8.4 dB for both amplitude and phase quadratures.

Squeezed-light generation with an incoherent pump.

The requirement of a coherent pump source to observe quantum-optic effects, say squeezing in particular, is not necessary and this paper demonstrates it by reporting an experiment in which a temporally incoherent pump source is used to generate squeezed light.

Control, measurement, and propagation of entanglement in photon pairs generated through type-II parametric down-conversion

We present a study of the effects of dispersion on the properties of photon pairs generated by type-II collinear spontaneous parametric down-conversion. Specifically, we take into consideration the

Spatial two-photon coherence of the entangled field produced by down-conversion using a partially spatially coherent pump beam

We study the spatial coherence properties of the entangled two-photon field produced by parametric down-conversion (PDC) when the pump field is, spatially, a partially coherent beam. By explicitly

Influence of pump coherence on the quantum properties of spontaneous parametric down-conversion

The correlation properties of the pump field in spontaneous parametric down-conversion are crucial in determining the degree of entanglement of generated signal and idler photons. We find

Quantum noise and squeezing in an optical parametric oscillator with arbitrary output-mirror coupling. III. Effect of pump amplitude and phase fluctuations.

  • Prasad
  • Physics
    Physical review. A, Atomic, molecular, and optical physics
  • 1994
The analysis reported here extends the previous calculations for a perfectly monochromatic noise-free pump to allow for finite pump amplitude and phase fluctuations to treat the typically intense pump field with its fluctuations as a classical Gaussian stochastic process.

The phase sensitivity of a fully quantum three-mode nonlinear interferometer

We study a nonlinear interferometer consisting of two consecutive parametric amplifiers, where all three optical fields (pump, signal and idler) are treated quantum mechanically, allowing for pump

Properties of entangled photon pairs generated by a CW laser with small coherence time: theory and experiment

The generation of entangled photon pairs by parametric down-conversion from solid state CW lasers with small coherence time is theoretically and experimentally analyzed. We consider a compact and

A novel semiconductor-based, fully incoherent amplified spontaneous emission light source for ghost imaging

A broad-area superluminescent diode is proposed as a new light source for classical ghost imaging and the coherence behavior of this spectrally broadband emitting opto-electronic light source is investigated in detail.

Experimental generation of 6 dB continuous variable entanglement from a nondegenerate optical parametric amplifier.

We experimentally demonstrated that the quantum correlations of amplitude and phase quadratures between signal and idler beams produced from a non-degenerate optical parametric amplifier (NOPA) can
...