The zero point energy and gravitation

A possible connection between the energy W of the vacuum fluctuations of quantum fields and gravity in “empty space” is conjectured in this paper using a natural cutoff of high momenta with the help of the gravitational radius of the vacuum region considered. We found that below some “critical” length $L = 1 mm$thepressure$sigma$isonethirdoftheenergydensity$epsilon$, as for dark matter, but above $1mm$ the equation of state is $sigma=-(epsilon)$ (dark energy). In the case of a massive field, W does not depend on the mass of the field for $L<<1mm$ but for $L>>1mm$ it does not depend on the Planck constant. In addition, when the Newton constant tends to zero, W becomes infinite. The energy density is also a function of the volume V of the vacuum region taken into account.