Regards the notes In the vacuum filed tab. The analysis suggests a test of the theory of how the vacuum field gives rise to mass and energy is the conclusion that time
must speed up in the presence of a large negative mass purturbing space in the opposite sense to normal mass. But do we have enough antimatter collected to test space curvature due to antimatter?
Thanks David, I had not seen this, this is very interesting. I had also been thinking about how voids might form between superclusters myself. I wasn't sure if negative pressure can explain the structures or if the gravity of the web of superclusters was sufficient. I know that they have run some very detailed simulations which seems to suggest that normal gravity can explain it: IllustrisTNG - Main (tng-project.org) Large-scale Structure | COSMOS (swin.edu.au) I also found this experiment regarding anti-matter and anti-gravity: CERN experiments investigate whether antimatter falls up or down (newatlas.com)
Further to the above on the vacuum field, dark matter etc and possible negative mass. Not enough antimatter as been collected to prove the mainstream idea that antimatter does not have negative mass as this would break many laws of physics, but negative mass may explain dark matter/dark energy - see "Dark Fluid" by Jamie Farnes (Oxford Uni) at https://en.wikipedia.org/wiki/Dark_fluid
Is negative mass another name for anti-matter? I thought anti-matter still had positive mass or perhaps it has not been confirmed?