On loss of quantum coherence in an interacting Fermi gas
نویسنده
چکیده
We clarify the path integral calculation, recently suggested by Golubev and Zaikin [1,2], and show, contrary to their claim, that quasiparticles become fully coherent quantum particles in the T → 0 limit. The important physical point is the inclusion of the recoil of the quasiparticle when interacting with fluctuations in the rest of the Fermi gas. Typeset using REVTEX 1
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