Soft collective charge mode in a 1D electron system

V. A. Sablikov, Yasha Gindikin

Research output: Contribution to journalConference articlepeer-review


A new property of the charge collective mode in a 1D electron system is found. In the wave number region close to 2kF (kF being the Fermi wave number) the mode frequency goes to zero, showing the soft mode behavior. In addition, the common 1D plasmon spectrum exists in the long-wave region. The soft mode is related to the short-range dynamic electron correlations in 1D and is absent in the systems of higher dimensionality. The dynamic correlations are described adequately in the frame of the Luttinger model.

Original languageEnglish (US)
Pages (from-to)264-266
Number of pages3
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2003
Externally publishedYes
Event10th International Symposium on Nanostructures: Physics and Technology - St. Petersburg, Russian Federation
Duration: Jun 17 2002Jun 21 2002


  • Charge-density waves
  • Luttinger liquid
  • Plazmons
  • Quantum wire


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