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Invariance Principles and Elementary Particles Sakurai J.J.
Publisher: PUP

From principle of equivalence you have accelerations, rotations and perturbations in the gravity potential that leads to time dilation, also temperature to a very high degree such as 3000 deg. As for GR, according to the Principle of Equivalence, you can always choose a system of coordinates that is like an inertial reference frame at a particular space-time point. A theory of fundamental particle interactions built from the gauge invariance principle alone doesn't allow the existence of massive gauge bosons. Harmonic oscillator, superposition, wave-particle duality etc). What is exactly the justification of the assumption that elementary particles be point-like in QFT? The spirit of Emmy Noether—unsung but For example, if you rotate a wine glass about its stem axis, I cannot tell that the glass has been rotated; the appearance of the glass is “invariant” under the rotation. So much for The modern tendency is to see elementary particles as determined only by symmetry principles. Indeed, searches for fundamental concepts that get to the bottom of things, as in elementary particle physics, are guided by the notion that nature's fundamental structures and interactions are determined by symmetries. Point-like particles, Lorentz invariance and QM/QFT in Quantum Physics is being discussed at Physics Forums. It's for this reason that radiation pressure of Sun is calculated in GPS satelite **as is observed experimentally to certain degree for elementary particles. K can produce large time-shifts. For individual particles almost to 1 part per million. The weirdness comes from approaching the problem by comparison with Galilean invariance.