Symmetries and Action Principle Flashcards

1
Q

Define action and Euler Lagrange equations

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2
Q

Does adding a term change the EL equations

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3
Q

Define symmetry

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4
Q

Define infinitesimal transformations

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5
Q

State Noether’s Theorem

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6
Q

Give the EL equations for fields

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7
Q

Give the EL equations using Lorentz covariant notation

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8
Q

Define Lorentz Invariance

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9
Q

How do objects transform under Lorentz transformation?

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10
Q

When is an action Lorentz invariant

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11
Q

Transforming the argument of a field but not the derivative gives

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