Abstract
We demonstrate, theoretically and experimentally, the generation of hexapartite modal entanglement by the optical parametric oscillator (OPO) operating above the oscillation threshold. We show that the OPO generates a rich structure of entanglement among sets of six optical sideband modes interacting through the nonlinear crystal. The class of quantum states thus produced can be controlled by a single parameter, the power of the external laser that pumps the system. Our platform allows for the generation of massive entanglement among many optical modes with well defined but vastly different frequencies, potentially bridging nodes of a multicolor quantum network.
- Received 6 March 2018
DOI:https://doi.org/10.1103/PhysRevLett.121.073601
© 2018 American Physical Society
Physics Subject Headings (PhySH)
Synopsis
SynopsisA Sextet of Entangled Laser Modes
Published 13 August 2018
Researchers have entangled six modes of a laser cavity—a record number for such a device.
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