During the past few years, CERN physicist Dragan Hajdukovic has been investigating what he thinks may be a widely overlooked part of the cosmos: the quantum vacuum. He suggests that the quantum vacuum has a gravitational charge stemming from the gravitational repulsion of virtual particles and antiparticles. Previously, he has theoretically shown that this repulsive gravity can explain several observations, including effects usually attributed to dark matter. Additionally, this additional gravity suggests that we live in a cyclic Universe (with no Big Bang) and may provide insight into the nature of black holes and an estimate of the neutrino mass. In his most recent paper, published in Astrophysics and Space Science, he shows that the quantum vacuum could explain one more observation: the Universe’s accelerating expansion, without the need for dark
energy.
To read more, click here."This theory is not correct in my opinion. Virtual fermion anti-fermion pairs cause attractive gravity. Virtual bosons cause repulsive gravity. See Peter Milonni's "Quantum Vacuum" and John Peacock's "Cosmological Physics."
If the density of virtual fermion anti-fermion pairs exceeds that of virtual bosons you have an attractive dark matter field that mimics w = 0 CDM. Repulsive dark energy is the opposite." - Jack Sarfatti 2-1-2012