Abstract
We construct a theoretical model to investigate the realization of density wave fluctuations in one-dimensional metals. In the low-energy limit, we study the U(1) anisotropic t−U−J chain at quarter filling. Applying the bosonization and renormalization group techniques, we obtain the ground state phase diagram, which consists of charge-density-wave as well as both longitudinal- and transverse-spin-density-wave instabilities. The result exhibits that in one-dimensional metals, the superconducting instabilities can be suppressed by the density wave instabilities.
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