Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas
AMA | September 2024
Sean Carroll
There's two different kinds of gravitons, just like there's two different kinds of photons, one that are helicity plus one and helicity minus one. Same thing is true for gravitons, so different spins of the gravitons, but they're not in any sense antiparticles to each other. It's generally speaking charged particles that have antiparticles.
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