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## Homework Statement

I must find the following equation of motion:

φ'' + 3Hφ' + dV/dφ = 0

Using the scalar field Lagrangian:

with the Euler-Lagrange Equation

I know that I must assume φ = φ(t) and the scale factor a = a(t)

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- Thread starter HashKetchum
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I must find the following equation of motion:

φ'' + 3Hφ' + dV/dφ = 0

Using the scalar field Lagrangian:

with the Euler-Lagrange Equation

I know that I must assume φ = φ(t) and the scale factor a = a(t)

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