Theoretical modeling for quantum liquids from 1d to 2d dimensional crossover using quantum groups

Details Theoretical modeling for quantum liquids from 1d to 2d dimensional crossover using quantum groups Theoretical modeling for quantum liquids from 1d to 2d dimensional crossover using quantum groups

1999-03-31

arxiv.org/abs/cond-mat/9903455v1

Physics

Condensed Matter

Strongly Correlated Electrons

11 pages, RevTex

Scientific paper

Recent experimental and theoretical work in strongly correlated electron system necessitates a formulation to deal with 1d to 2d dimensional crossover and raises several interesting questions. A particularly interesting question is what happens to the 1d Luttinger liquid, as we go from 1d to 2d? The main point of emphasis of the present note is that the transition from 1d to 2d has an underlying quantum group symmetry. This relationhip of 1d to 2d transition with quantum group symmetry ties in nicely with our previous proposal to model superconductivity, antiferromagnetism and related phases arising from strongly correlated electron states with quantum groups. A simple model based on two interacting chains with nearest neighbor and next to nearest neighbor interactions is suggested. It appears reasonable to assume that it is the interaction between the 1d Luttinger liquids which leads to the quantum group symmetry and the transition to 2d quantum liquid. The conditions under which this 2d quantum liquid deviates away from the 2d Fermi liquid is clearly of main interest to us. One of the prime motivations underlying our proposal is the experimental observation of stripe structure [phase] in high T_c superconductivity [HTSC] materials. In short a simple model of two coupled chains 1d chains is considered to answer an important question, how does one couple two 1d chains [Luttinger Liquid] to obtain non-Fermi liquid [NFL] or partial NFL behavior in 2d?

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