2002/09/12 by J. J. Lin, Juhn‐Jong Lin, T. J. Li +3 · 2 citations
Engineering · Mathematics · Physics and Astronomy · #Condensed matter physics #Dephasing #Electron #Electron temperature #Mathematics #Philosophy #Physics #Quantum and electron transport phenomena #Quantum mechanics #Saturation (graph theory) #Scattering #Semiconductor materials and devices #Spectroscopy and Quantum Chemical Studies #Zero (linguistics) #Zero temperature #cond-mat.mes-hall
paper · pdf · doi:10.1143/jpsjs.72sa.7
published as J. Phys. Soc. Jpn. 72 (Suppl. A), 7 (2003)
arxiv created 2002/09/12 · openalex publication_date 2003/01/03 · arxiv updated 2012/08/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The behavior of the electron dephasing time near zero temperature, τφ0, has recently attracted vigorous attention. This renewed interest is primarily concerned with whether τφ0 should reach a finite or an infinite value as T → 0. While it is accepted that τφ0 should diverge if there exists only electron-electron (electron-phonon) scattering, several recent measurements have found that τφ0 depends only very weakly on temperature, if at all, when T is sufficiently low. This article discusses the current experimental status of "the saturation problem", and concludes that the origin(s) for this widely observed saturation are still unresolved.