Kaluza-Klein models: can we construct a viable example?

Understand

In Kaluza-Klein models, we investigate soliton solutions of Einstein equation.

• We obtain the formulas for perihelion shift, deflection of light, time delay of radar echoes and PPN parameters.
• We find that the solitonic parameter k should be very big: |k|\geq 2.3\times10^4.
• We define a soliton solution which corresponds to a point-like mass source.