We calculate the temperature dependence of correlations in coupled quantum wells using an STLS formalism
generalized to Þnite temperatures. We investigate the e¤ects of the temperature dependence of the correlations on the
acoustic and optical plasmon dispersion curves and on Coulomb drag. Correlations are known to depress the energies of
the two plasmons, while Þnite temperatures tend to increase the energies. We Þnd this can result in considerable
cancellation between the two e¤ects at Þnite temperatures. We Þnd that at temperatures kBT<EF the local fields do not
change appreciably with temperature so that in calculating the temperature dependence of the Coulomb drag using the
zero temperature local fields suffices. The pair correlation function within the layers is also found to be insensitive to
temperatures for kBT<EF. For higher temperatures than this the pair correlation function for small separations starts to
increase as the exchange-correlation hole shrinks
