Accession Number:

AD0614062

Title:

THEORY OF COHERENCE FOR THE QUANTIZED ELECTROMAGNETIC FIELD,

Descriptive Note:

Corporate Author:

CONTROL DATA CORP MELVILLE N Y TRG DIV

Personal Author(s):

Report Date:

1965-02-01

Pagination or Media Count:

47.0

Abstract:

A preliminary account of the quantum theory of coherence for electromagnetic radiation is presented using the method of Schwingers variational action principle. The generating functional for the quantum expectation values of arbitrary products of field operators for the free electromagnetic field subject to any homogeneous boundary conditions is explicitly given in terms of the dyadic Greens function for the corresponding classical problem. Although thermal expectation values are generated directly by the process of functional differentiation in this formulation, it is possible to generate expectation values for any free field state by employing projection operations. In particular Glaubers coherent state expectation values may be obtained. Results for the radiation field coupled only to c-number sources may trivially be extracted from the free field formulation. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE