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cond-mat.str-el2001★ 30 cited
Phase diagram of an asymmetric spin ladder
Shu Chen, H. Buettner, J. Voit
We investigate an asymmetric zig-zag spin ladder with different exchange integrals on both legs using bosonization and renormalization group. When the leg exchange integrals and fr…
cond-mat.str-el2001★ 65 cited
Lattice Twisting Operators and Vertex Operators in Sine-Gordon Theory in One Dimension
Masaaki Nakamura, Johannes Voit
In one dimension, the exponential position operators introduced in a theory of polarization are identified with the twisting operators appearing in the Lieb-Schultz-Mattis argument…