EFFECTIVE NONLINEAR SUSCEPTIBILITIES IN THE QUANTUM-THEORY OF PARAMETRIC DOWN-CONVERSION

Authors
ANDREWS R PIKE ER SARKAR S
Citation
R. Andrews et al., EFFECTIVE NONLINEAR SUSCEPTIBILITIES IN THE QUANTUM-THEORY OF PARAMETRIC DOWN-CONVERSION, Physical review. A, 50(3), 1994, pp. 2615-2620
Citations number
10
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
50
Issue
3
Year of publication
1994
Pages
2615 - 2620
Database
ISI
SICI code
1050-2947(1994)50:3<2615:ENSITQ>2.0.ZU;2-C
Abstract
The alternative multimode theories of parametric down-conversion based on either nonlinear susceptibility models or the general quantum elec trodynamic interaction are critically examined and shown not to be equ ivalent. The predictions can be qualitatively different; in contrast t o the former, within the framework of the latter, it is necessary to d efine more than one type of nonlinear susceptibility in order to descr ibe one-photon and two-photon count rates.