Is it even possible for a virtual particle-antiparticle pair to be torn apart by cosmological expansion? Virtual particle-antiparticle pairs are ripped apart near black hole event horizons, creating Hawking Radiation, but can this ever be reproduced by the expansion of space due to a cosmological constant? And if so, at what rate of expansion would this occur? Would the rate have to equal c?
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I want to know what happens to the space a black hole crosses over as our galaxy travels through space.
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