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

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

2001-06-22

arxiv.org/abs/cond-mat/0106473v2

Phys. Rev. Lett. 88, 057003 (2002)

Physics

Condensed Matter

Superconductivity

Final version. Accepted for publication in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.88.057003

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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