Bright tripartite entanglement in triply concurrent parametric oscillation (6 pages)

A. F. R. de Toledo Piza, Marcio F. Cornelio

Chang‐shui Yu, He-Shan Song

Ashton S. Bradley, M. K. Olsen, Olivier Pfister +1 more

We show that an optical parametric oscillator based on three concurrent ${\ensuremath{\chi}}^{(2)}$ nonlinearities can produce, above threshold, bright output beams of macroscopic intensities which exhibit strong tripartite continuous-variable entanglement. We also show that there are two ways that the system can exhibit a three-mode form of the Einstein-Podolsky-Rosen paradox, and calculate the extracavity fluctuation spectra that may be measured to verify our predictions.

Pradip Laha, B. Sudarsan, S. Lakshmibala +1 more

Ashton S. Bradley, M. K. Olsen, Olivier Pfister +1 more

This paper has been withdrawn since it was an inadvertant double submission. An updated version of the original submission can be found at quant-ph/0505131

Ashton S. Bradley, M. K. Olsen, Olivier Pfister +1 more

We show that an intracavity optical device which utilises concurrent $\\chi^{(2)}$ nonlinearities can produce output beams which exhibit strong tripartite entanglement. Above threshold a significant degree of entanglement is predicted for beams with macroscopic intensities. We also demonstrate two independent ways that the system can exhibit a three mode form of the Einstein-Podolsky-Rosen paradox.