Realizability condition for electromagnetic Schell-model sources.
The set of functions that appear in the correlation matrix of an electromagnetic source must satisfy the constraint of nonnegative definiteness. Here we derive a necessary and sufficient condition for nonnegativeness for the class of electromagnetic Schell-model sources. This result also suggests a possible synthesis procedure for this type of source. As an illustration, two specific examples of electromagnetic Schell-model sources are discussed.
Gori
F
F
Università Roma Tre, Dipartimento di Fisica, and CNISM, Via della Vasca Navale 84, Rome, Italy. gori@uniroma3.it
Santarsiero
M
M
Borghi
R
R
Ramírez-Sánchez
V
V