Top network posts

• 50 Why do we expect our theories to be independent of cutoffs?
• 30 Understanding Ramification Points
• 29 What's the relationship between $SL(2,\mathbb{C})$, $SU(2)\times SU(2)$ and $SO(1,3)$?
• 23 If renormalization scale is arbitrary, why do we care about running couplings?
• 22 The Lagrangian in Scalar Field Theory
• 22 Why does the classical Noether charge become the quantum symmetry generator?
• 21 The Origins of Instantons from Path Integrals
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