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Motivated by the recent experimental data [Phys. Rev. B 79, 100502 (2009)]indicating the existence of a pure stripe charge order over unprecedently widetemperature range in La_{1.8-x}Eu_{0.2}Sr_xCuO_4, we investigate thetemperature-induced melting of the metallic stripe phase. In spite of takinginto account local dynamic correlations within a real-space dynamicalmean-field theory of the Hubbard model, we observe a mean-field like melting ofthe stripe order irrespective of the choice of the next-nearest neighborhopping. The temperature dependence of the single-particle spectral functionshows the stripe induced formation of a flat band around the antinodal pointsaccompanied by the opening a gap in the nodal direction.

Melting of stripe phases and its signature in the single-particle spectral function