Absence of asymptotic freedom in doped mott insulators: Breakdown of strong coupling expansions

Philip Phillips, Dimitrios Galanakis, Tudor D. Stanescu

Research output: Contribution to journalArticle

Abstract

The absence of asymptotic freedom in high temperature Mott insulators was discussed. It was found that the breakdown of strong coupling expansions failed for the high temperature superconductors because the value of the quasiparticle weight in the vicinity of half filling depended crucially on the presence of the upper Hubbard band. The absence of freedom of the doped Mott Insulators arose from quantum interference between electronic excitations across the Mott gap. The results show that the Pauli principle appeared as a sum rule over high and low energies in doped Mott systems.

Original languageEnglish (US)
Article number267004
JournalPhysical review letters
Volume93
Issue number26 I
DOIs
StatePublished - Dec 31 2004

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breakdown
insulators
expansion
high temperature superconductors
sum rules
interference
electronics
excitation
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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Absence of asymptotic freedom in doped mott insulators : Breakdown of strong coupling expansions. / Phillips, Philip; Galanakis, Dimitrios; Stanescu, Tudor D.

In: Physical review letters, Vol. 93, No. 26 I, 267004, 31.12.2004.

Research output: Contribution to journalArticle

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