Time ordering effects in the generation of entangled photons using nonlinear optical processes

Abstract

We study the effects of time ordering in photon generation processes such as spontaneous parametric down-conversion (SPDC) and four wave mixing (SFWM). The results presented here are used to construct an intuitive picture that allows us to predict when time ordering effects significantly modify the joint spectral amplitude (JSA) of the photons generated in SPDC and SFWM. These effects become important only when the photons being generated lie with the pump beam that travels through the non-linear material for a significant amount of time. Thus sources of spectrally separable photons are ideal candidates for the observation of modifications of the JSA due to time ordering.

6+4 pages. Comments are welcome

References in corpus (3)

• Direct generation of photon triplets using cascaded photon-pair sources
• Effects of time ordering in quantum nonlinear optics
• Decomposing a pulsed optical parametric amplifier into independent squeezers

Cited by in corpus (5)

• Theory of high-efficiency sum-frequency generation for single-photon waveform conversion
• Generator of spatial evolution of the electromagnetic field
• Time-ordering effects in a one-atom laser based on electromagnetically-induced transparency
• General ordering theorem
• Theory of Symmetry-Protected Two-Photon Coherence