Cosmological Constant and Universe

Cosmological constant is proportional to the sum of binding energy and its absolute value. If we supposed that the absolute value of binding energy is a function of (A, Z′) instead of (A,Z) we have vacuum electric energy density 1ρ as a function of (A, Z ) and Vacuum magnetic energy density 2ρ as a function of (A, Z′). 1ρ is proportional to the square value of electric field in empty space and 2ρ is proportional to the square value of magnetic field. Using these definitions for 1ρ and 2ρ giving the exponential formula for the cosmological constant, but cosmological constant must be real value since 1ρ and 2ρ are real values and then it is a sine function.