title: Phase diagram and dynamics of the projected SO(5) symmetric model of high- T(c) superconductivity.
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 asymptotic restoring of the SO(5) symmetry at the critical point.
authors.affiliation: Institut für Theoretische Physik, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Dorneich
authors.forename: W
authors.initials: W
authors.lastname: Hanke
authors.forename: E
authors.initials: E
authors.lastname: Arrigoni
authors.forename: M
authors.initials: M
authors.lastname: Troyer
authors.forename: S C
authors.initials: SC
authors.lastname: Zhang