Can virtual particles travel faster than light?
Quantum mechanics. In quantum mechanics, virtual particles may travel faster than light, and this phenomenon is related to the fact that static field effects (which are mediated by virtual particles in quantum terms) may travel faster than light (see section on static fields above).
Is dark matter virtual particles?
The mysterious substance known as dark matter may actually be an illusion created by gravitational interactions between short-lived particles of matter and antimatter, a new study says. Dark matter is thought to be an invisible substance that makes up almost a quarter of the mass in the universe.
Is repulsive gravity possible?
According to Hajdukovic, gravity in the quantum vacuum arises from the gravitational repulsion between the positive gravitational charge of matter and the (hypothetical) negative gravitational charge of antimatter. While matter and antimatter are gravitationally self-attractive, they are mutually repulsive.
Can gravity be dark matter?
Because dark matter has not yet been observed directly, if it exists, it must barely interact with ordinary baryonic matter and radiation, except through gravity….Composition.
| Light bosons | quantum chromodynamics axions |
|---|---|
| macroscopic | Macroscopic dark matter (Macros) |
| modified gravity (MOG) | modified Newtonian dynamics (MoND) |
Can antimatter kill you?
Whereas nuclear weapons are ‘fail-safe’, antimatter weapons are inherently ‘fail-deadly’: In an antimatter weapon, any failure of containment would immediately result in annihilation, which would damage or destroy the containment system and lead to the release of all of the antimatter material, causing the weapon to …
Is an antimatter bomb possible?
A gram of antimatter could produce an explosion the size of a nuclear bomb. However, humans have produced only a minuscule amount of antimatter. All of the antiprotons created at Fermilab’s Tevatron particle accelerator add up to only 15 nanograms. Those made at CERN amount to about 1 nanogram.
Why is there no antimatter in the universe?
So why is there far more matter than antimatter in the universe? The Big Bang should have created equal amounts of matter and antimatter in the early universe. Matter and antimatter particles are always produced as a pair and, if they come in contact, annihilate one another, leaving behind pure energy.
Does antimatter still exist?
For the past 50 years and more, laboratories like CERN have routinely produced antiparticles, and in 1995 CERN became the first laboratory to create anti-atoms artificially. But no one has ever produced antimatter without also obtaining the corresponding matter particles.
What would an antimatter universe look like?
What if anti-atoms gravitationally repelled each other? In that case, an antimatter universe would never form stars or galaxies. Our antimatter universe would simply be filled with traces of anti-hydrogen and anti-helium, and nothing would ever look up at the cosmic sky.