M. Tavares et al., Electronic part of the optical correlation function at finite temperature:The S-matrix expansion, SOL ST COMM, 109(4), 1999, pp. 223-227
We present an extension to finite temperature of the Mahan-Nozieres-De Domi
nicis framework to obtain the electronic part of the current-current correl
ation function. Its Fourier transform gives the absorption and emission spe
ctra of doped low-dimensional semiconductors. We show the meaning of the ne
w finite-temperature contributions characterizing the electronic part. (C)
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