2007/11/30 by M. K. Olsen, Ashton S. Bradley, A. S. Bradley · 40 citations
Computer Science · Mathematics · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Dynamics (music) #Electromagnetic field #Field (mathematics) #Mathematics #Optics #Physics #Quadrature (astronomy) #Quantum #Quantum Information and Cryptography #Quantum discord #Quantum electrodynamics #Quantum entanglement #Quantum mechanics #Quantum metrology #Quantum optics and atomic interactions #Semiclassical physics #quant-ph
paper · pdf · doi:10.1103/physreva.77.023813
published in Physical Review A 77(2) (American Physical Society)
arxiv created 2007/11/30 · openalex publication_date 2008/02/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We investigate the quantum properties of the well-known process of sum frequency generation, showing that it is potentially a very useful source of nonclassical states of the electromagnetic field, some of which are not possible with the more common techniques. We show that it can produce quadrature squeezed light, bright bichromatic entangled states, and symmetric and asymmetric demonstrations of the Einstein-Podolsky-Rosen paradox. We also show that the semiclassical equations totally fail to describe the mean-field dynamics when the cavity is strongly pumped.