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Perturbation theory at high temperature.

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Presentation on theme: "Perturbation theory at high temperature."— Presentation transcript:

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4 Perturbation theory at high temperature

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8 Quantum ChromoDynamics Non linear effects become important when

9 Long wavelength thermal fluctuations Breakdown of thermal perturbation theory

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11 Effective theories

12 Classical field approximation Dimensional reduction

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19 Collective phenomena

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24 Thermodyamics and collective modes

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29 Skeleton expansion and the entropy See also hep-ph/0303185

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