Spectral function of a quarter-filled one-dimensional charge density wave insulator.
We consider a one-dimensional charge density wave insulator formed by umklapp processes in a quarter-filled band. The spectrum of the model consists of gapless, uncharged excitations carrying spin +/- 1/2 (spinons) and gapped, spinless excitations carrying charge -/+ signe/2 (solitons and antisolito...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2002
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