Quantum optical formulation of difference-frequency generation and optimal cloning of structured light
Abstract
We present a quantum optical formulation of difference-frequency generation (DFG) that incorporates the spatial modes of light. It reproduces the well-established result for classical light beams and establishes the relation of DFG to stimulated and spontaneous parametric down-conversion. As shown here, these relations determine that stimulated parametric down-conversion can realize N → M d -dimensional optimal quantum cloning.
Fields of Study & Subjects
Quantum Information and Cryptography
Quantum optics and atomic interactions
Photorefractive and Nonlinear Optics
Publication details
- Journal / source
- Journal of the Optical Society of America B
- Volume
- 43
- Issue
- 3
- Pages
- 613–613
- Publication date
- 6 February 2026
- Language
- EN