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Phase diagram and dynamics of the projected SO(5)-symmetric model of high-$T_c$ superconductivity

A. Dorneich·W. Hanke·E. Arrigoni·M. Troyer·S. C. Zhang
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Abstract

We present numerical studies of a quantum ``projected'' SO(5) model which aims at a unifying description of antiferromagnetism and superconductivity in the high-T$_c$ cuprates, while properly taking into account the Mott insulating gap. Our numerical results, obtained by the Quantum Monte Carlo technique of Stochastic Series Expansion, show that this model can give a realistic description of the global phase diagram of the high-$T_c$ superconductors and accounts for many of their physical properties. Moreover, we address the question of dynamic restoring of the SO(5) symmetry at the critical point.

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A. Dorneich, W. Hanke, E. Arrigoni, M. Troyer, S. C. Zhang. 2002-01-08. Phase diagram and dynamics of the projected SO(5)-symmetric model of high-$T_c$ superconductivity. https://doi.org/10.1103/physrevlett.88.057003

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