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touqra
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Apart from C, P and T violation in weak interaction, do the same violations occur for the other three forces, in particular, the quantum gravity force?
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zefram_c said:Both EM and strong force respect C, P and T. I am pretty certain that gravity also respects them: a particle has the same mass as its antiparticle so its gravitational pull is the same (C). I think Einstein's equations are time reversal invariant so (T) holds, hence (P) should also hold by CPT.
Haelfix said:So by construction the theory is chiral, eg its a gauge theory in the yangmills sense with two representations of SU(2)
Su(2) (left) * Su(2) (right)
Quantum gravity is a theoretical framework that seeks to explain the force of gravity within the framework of quantum mechanics, the theory that describes the behavior of particles at a very small scale.
Force violations in quantum gravity occur when the behavior of particles at a very small scale does not align with the predictions of classical physics. This can lead to inconsistencies and challenges in understanding the force of gravity.
Classical gravity is described by Newton's law of universal gravitation, while quantum gravity takes into account the principles of quantum mechanics and attempts to unify gravity with the other three fundamental forces of nature.
Quantum gravity is a highly complex and theoretical field, and many of its predictions are difficult to test or observe due to the extremely small scales involved. Additionally, there is no widely accepted theory of quantum gravity, making it difficult to make concrete predictions or observations.
If we can better understand and potentially reconcile the discrepancies between gravity and quantum mechanics, it could lead to a more complete understanding of the fundamental forces of nature and potentially open up new avenues for technological advancements.