Classical and quantum local criticality due to electron-vibration interaction

Research output: Contribution to journalArticle

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Abstract

We study the local classical and quantum critical properties of electron-vibration interaction, represented by the Yu-Anderson model. It exhibits an instability, similar to the Wentzel-Bardeen singularity, whose nature resembles to weakly first-order quantum-phase transitions at low temperatures, and crosses over to Gaussian behavior with increasing temperature. We determine the dominant energy scale separating the quantum from classical criticality, study the effect of dissipation, and analyze its impact on correlation functions. Similar phenomenon should be observable in carbon nanotubes around local defects.

Original languageEnglish
Article number165121
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume79
Issue number16
DOIs
Publication statusPublished - Apr 1 2009

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dissipation
carbon nanotubes
vibration
Carbon Nanotubes
Electrons
defects
Carbon nanotubes
electrons
Phase transitions
interactions
Temperature
Defects
temperature
energy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Classical and quantum local criticality due to electron-vibration interaction. / Dóra, B.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 79, No. 16, 165121, 01.04.2009.

Research output: Contribution to journalArticle

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