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# Author Archives: growescience

## Wick’s theorem and path integrals

Wick’s theorem and path integrals Advertisements

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## Lagrangian for gaussian integral

Lagrangian for gaussian integral

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## Scalar field theory with source field

Scalar field theory with source field

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## Generating functional for harmonic oscillator

Generating functional for harmonic oscillator

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## Green function for diffusion equation

Green function for diffusion equation

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## Response function for forced harmonic oscillator

Response function for forced harmonic oscillator

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## Thermal average of a harmonic oscillator

Thermal average of a harmonic oscillator

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