Quantum Group Based Theory for Antiferromagnetism and Superconductivity: Proof and Further Evidence

Details Quantum Group Based Theory for Antiferromagnetism and Superconductivity: Proof and Further Evidence Quantum Group Based Theory for Antiferromagnetism and Superconductivity: Proof and Further Evidence

2002-11-05

arxiv.org/abs/cond-mat/0211075v1

Physica C 392-396 (2003) 149-152

Physics

Condensed Matter

Superconductivity

9 pages revtex. 15th International Symposium on Superconductivity [ISS] 2002 [PCP-3/ISS 2002], Yokohama, Japan

Scientific paper

10.1016/S0921-4534(03)01107-9

Previously one of us presented a conjecture [APF-4 Proceedings] to model antiferromagnetism and high temperature superconductivity and their 'unification' by quantum group symmetry rather than the corresponding classical symmetry in view of the critique by Baskaran and Anderson of Zhang's classical SO(5) model. This conjecture was further sharpened, experimental evidence and the important role of 1-d systems [stripes] was emphasized and moreover the relationship between quantum groups and strings via WZWN models were given in [Phys. Lett A272, (2000)]. In this brief note we give and discuss mathematical proof of this conjecture, which completes an important part of this idea, since previously an explicit simple mathematical proof was lacking. Moreover an independent calculation [IC/99/2] which constructs the generators forming SO(5) algebra not only supports our previous conjecture but provides a check on our calculations. It is important to note that in terms of physics that the arbitariness [freedom] of the d-wave factor g$^{2}$(k) is tied to quantum group symmetry whereas in order to recover classical SO(5) one must set it to unity in an adhoc manner. We intuitively expect that this freedom may be related to psuedogap behaviour in cuprates.

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