Underlying Pairing States of High $T_c$ Superconductivity

Details Underlying Pairing States of High $T_c$ Superconductivity Underlying Pairing States of High $T_c$ Superconductivity

1999-09-12

arxiv.org/abs/cond-mat/9909172v1

Physics

Condensed Matter

Superconductivity

4 pages, 1 figure, Talk presented in 1999 Taiwan International Conference on Superconductivity (TICS'99) & The Sixth Workshop

Scientific paper

I present a microscopic theory I proposed recently to describe high-T_c superconductivity in cuprates. I show that coherent pairing states consisting of extended singlet Cooper pairs and triplet $\pi$ pairs can manifest both the Mott insulating antiferromagnetic order and the d-wave superconducting order. From this configuration of coherent pairing states, I can describe both the single electron properties and the low energy collective excitations in high T_c superconductivity in the same framework. The quasiparticle can be derived directly with respect to the coherent pairing states. While, the low-lying quantum fluctuations associated with spin-wave and charge excitation can be investigated from the path integral of the coherent pairing states.

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