Newman

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25 Questions

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11	Why do electron and proton have the same but opposite electric charge?
9	Difference between 1PI effective action and Wilsonian effective action
8	Did really everything begin with a state with very low entropy?
7	What is the reason that relativistic corrections for hydrogen atom work?
5	Why is there extra minus sign in Feynman's rules for every closed fermionic loop?

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422 Reputation

+5	Why do electron and proton have the same but opposite electric charge?
+5	Difference between 1PI effective action and Wilsonian effective action
-2	Deterministic quantum mechanics
+5	Why is there extra minus sign in Feynman's rules for every closed fermionic loop?

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7 Answers

votes activity newest

3	What is a field, really?
2	Books that every physicist should read
2	A No-Nonsense Introduction to Quantum Field Theory
1	Why do or don't neutrinos have antiparticles?
1	How does non-Abelian gauge symmetry imply the quantization of the corresponding charges?

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53 Tags

3 education × 2	1 gauge-invariance
3 field-theory	1 lie-algebra
2 quantum-field-theory × 19	1 group-representations
1 mass × 3	1 group-theory
1 gauge-theory × 2	1 antimatter

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1 Account

Physics

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