Abstract
A new behavior of the collective mode in a 1D electron liquid is found. The charge mode frequency goes to zero when the wave number is close to double Fermi wave number, i.e. the soft mode appears in addition to common long-wave plasmons. This mode is related to dynamic short-range electron correlations, which are adequately described in the frame of the Luttinger model. The soft mode is immanent in 1D and is absent in higher-dimensional systems. The results are valid for both Coulomb and short-range electron-electron interaction.
Original language | English (US) |
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Pages (from-to) | 354-355 |
Number of pages | 2 |
Journal | Physica E: Low-Dimensional Systems and Nanostructures |
Volume | 18 |
Issue number | 1-3 |
DOIs | |
State | Published - May 2003 |
Externally published | Yes |
Event | 23rd International Conference on Low Temperature Physics - Hiroshima, Japan Duration: Aug 20 2002 → Aug 27 2002 |
Bibliographical note
Funding Information:This work was supported by INTAS (project No. 0014), Russian Fund for Basic Research (projects No. 02-02-16953, 01-02-97017), the Presidium of Russian Academy of Sciences under the Programm “Low-dimensional quantum structures” and Russian Ministry of Science and Technology.
Keywords
- 1D plasmons
- Charge-density waves
- Quantum wires
- Strongly correlated electrons