I want to start by prefacing a scenario. Say equation of state is $w<-1$ and we live in a phantom dark energy dominated universe. This means in a finite time the cosmological scale factor reaches infinity and the cosmic event horizon reaches 0 in a finite time (i.e. as $t \to t_{rip}$). The expansion then starts first disassociating structures that are gravitationally bound (galaxies, planets, etc), then structures that are electromagnetically bound such as atoms and then their nuclei and finally nucleons into their fundamental constituent. I am assuming that the expansion also overpowers any quantum gravitational effects and even color confinement. Does anything exist at this point? Can a quantum field exist if the cosmological event horizon is $0$?
I only ask this question because many mainstream science articles and even academic journals all talk about how even spacetime is ripped? What does that actually entail?