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Symmetry in Particle Physics Noethers Theorem
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Symmetry in Particle Physics | Noether's Theorem • (CC: closed captions added) • https://www.amazon.com/Modern-Element... • Modern Elementary Particle Physics: Explaining and Extending the Standard Model 2nd Edition, Kindle Edition by Gordon Kane • Whenever there is a conserved current, there is also a conserved charge, and vice versa. Whenever there is an invariance of the theory, under some transformation, a conserved current arises, and can be written down in terms of appropriate derivatives of the Lagrangian. Thus, whenever there is an invariance, there is a corresponding conserved quantity. It can be any kind of charge defined by the associated current. All of this is called Noether's theorem. • #ParticlePhysics#NoethersTheorem#TheStandardModel • 0:00 Lagrangian for electromagnetism • 0:44 Noether's theorem • Prelude No. 17 by Chris Zabriskie is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/... • Source: http://chriszabriskie.com/preludes/ • Artist: http://chriszabriskie.com/ • Conservation laws are among the most important tools in physics. They feel as fundamental as you can get. And yet they’re wrong - or at least they’re only right sometimes. These laws are consequences of a much deeper, more fundamental principle: Noether’s theorem. • • Noether's Theorem and The Symmetries ... • The Standard Model Lagrangian explained (4-line version) • • The Standard Model Lagrangian explain... • Is Symmetry the Foundation of the Universe? Gauge Theory has an Answer • • How Symmetry is Fundamental to Realit... • Noether's theorem - Conservation law of linear momentum • • Noether's theorem - Conservation law ... • Noether's theorem - Conservation law of angular momentum • • Noether's theorem - Conservation law ... • Noether's theorem - Conservation law of energy • • Noether's theorem - Conservation law ...
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