In this paper, the concept of a post-selection operator current is introduced that is applicable to remote sensing physics as well as quantum mechanics. The post-selection operator (or cross-correlation for classical applications) current density (PSOCD) is defined in this paper, which also allows an operator current density to be. Both polarization operators and three dimensional operators have explicit Lie algebras, which impose lead to an algebra for the current which we discuss. When there is an evolution equation for signal such as the ambiguity function, the time evolution of a post-selected operator can be characterized. The underlying geometry that is implicit with this evolution is also applicable to other evolutionary/transport equations such as the Fokker-Planck equation, Brownian motion, and other equations that are used to model noise.
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