Paper
Concept of Quantum Fermi Liquid and Spin-Charge Separation Effect in 1D Systems
- Authors:
- Alla Dovlatova; Dmitri Yerchuck; Felix Borovik
- Abstract
- The concept of the quantum Fermi liquid for the description of (quasi)-1D electronic systems is recovered. The model of the (quasi)-1D quantum Fermi liquid is developed on the example of the trans-polyacetylene and it is the generalization of the well-known model of organic (quasi)-1D conductors, elaborated by Su, Schrieffer and Heeger (SSH-model). It is shown, that the spin-charge separation effect can be realized in (quasi)-1D quantum Fermi liquids. It has a topological soliton origin in distinction from a spinon-holon spin-charge separation effect, predicted by the Tomonaga-Luttinger liquid model. The model presented allows to extend the limits of the applicability of the SSH-model to the electron-electron correlated (quasi)-1D-systems without any restriction on an electron-electron interaction force. The (quasi)-1D-systems with a strong electron-phonon interaction and/or a strong electron-photon interaction can be also described within the framework of the 1D quantum Fermi liquid model proposed. The practical significance of the model proposed consists in the clarification of the nature of charge and spin carriers and in the clarification of the origin of mechanisms of the quasiparticles’ interaction in the (quasi)-1D-systems. The model predicts the formation of longlived coherent, squeezed and entangled states of phonons in (quasi)-1D electronic systems with strong electron-phonon interaction at room temperature and even higher. It seems to be significant for the elaboration of the devices of the nanoelectronics, of the spintronics and of the other modern nanotechnology branches, based on the use of (quasi)-1D-systems, in particular, the nanotubes.
- Keywords
- Electron-Phonon Interaction; Electron-Photon Interaction; Spin-Charge Separation; Fermi Liquid
- StartPage
- 37
- EndPage
- 56
- Doi