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Bose-Einstein Condensation of Excitons: Reply to Tikhodeev's Criticism

I. Loutsenko, D. Roubtsov

cond-mat.str-elarXiv:cond-mat/0004050

Abstract

The extended version of our reply to Comment on ``Critical Velocities in Exciton Superfluidity'' by S. G. Tikhodeev (Phys. Rev. Lett., 84 (2000), 3502 or from http://prl.aps.org/) is presented here. The principal question is discussed: does the moving exciton-phonon packet contain the coherent `nucleus', or the exciton-phonon condensate?

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