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 ρ₁ as a function of (A, Z ) and Vacuum magnetic energy density ρ₂ as a function of (A, Z′ ). ρ₁ is proportional to the square value of electric field

in empty space and ρ₂ is proportional to the square value of magnetic field. Using these definitions for ρ₁ and ρ₂ giving the exponential formula for the cosmological constant, but cosmological constant must be real value since ρ₁ and ρ₂ are real values and then it is a sine function.