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Dear all,</div>
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I have a quick question regarding the dielectric function's TDDFPT expressions of the imaginary (epsinlon_2)and real (epsilon_1) parts.</div>
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Is there an explicit dependence (inversely proportional to) on volume for epsilon_2 like in the Independent particle approximation (IPA)?</div>
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What is the relationship between epsilon_2 (IPA) and epsilon_2 (TDDFPT)?</div>
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Regards</div>
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Adjunct professor</div>
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Physics department</div>
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Federal University of Rondonia</div>
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Brazil</div>
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