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Antiferromagnetism and<b><i>d</i></b>-wave superconductivity in cuprates: A cluster dynamical mean-field theory
We present an approach to investigate the interplay of antiferromagnetism and d-wave superconductivity in the two-dimensional Hubbard model within a numerically exact cluster dynamical mean-field approximation. Self-consistent solutions with two nonzero order parameters exist in a wide range of doping level and temperatures. A linearized equation for the energy spectrum …