Symmetries and Action Principle Flashcards
1
Q
Define action and Euler Lagrange equations
A
2
Q
Does adding a term change the EL equations
A
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?
A
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
A