Graviton to photon conversion via parametric resonance

Resonant Photon-Graviton Conversion and Cosmic Microwave Background Fluctuations.

Resonant Photon-Graviton Conversion in EM Fields: From Earth to Heaven

Photon and Graviton Mass Limits

Efforts to place limits on deviations from canonical formulations of electromagnetism and gravity have probed length scales increasing dramatically over time. Historically, these formulations have passed through three stages: (1) Testing the power in the inverse-square laws of Newton and Coulomb, (2) Seeking a nonzero value for the rest mass of photon or graviton, (3) Considering more degrees o...

Noise characteristics of correlated two-photon production via parametric down-conversion

This paper gives a review of the phase and intensity quantum correlation between two photons in the process of optical parametric down-conversion (OPDC). Special emphasis is on the squeezed spectrum and squeezed intensity fluctuations in non-degenerate OPDC above threshold. Several experimental results of squeezed spectra and sub shot-noise intensity fluctuations are presented. PACS number(s): ...

Direct observation of nonclassical photon statistics in parametric down-conversion.

We employ a high quantum efficiency photon number counter to determine the photon number distribution of the output field from a parametric down-converter. The raw photocount data directly demonstrates that the source is nonclassical by 40 standard deviations, and correcting for the quantum efficiency yields a direct observation of oscillations in the photon number distribution.