The phase diagram of the one-dimensional quantum sine-Gordon system ($β^{2}=4π)$ with a linear spatial modulation

Details The phase diagram of the one-dimensional quantum sine-Gordon system ($β^{2}=4π)$ with a linear spatial modulation The phase diagram of the one-dimensional quantum sine-Gordon system ($β^{2}=4π)$ with a linear spatial modulation

2001-04-10

arxiv.org/abs/cond-mat/0104161v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages in tex

Scientific paper

The one-dimensional quantum sine-Gordon system with a linear spatial
modulation is investigated in a special case, $\beta ^{2}$ =4$\pi $. The model
is tranformed into a massive Thirring model and then is exactly diagonalized,
the energy spetrum of the model is obtained. Our result clearly demonstrates
that cancelling the cosine term without any considering is unadvisable.

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