arXiv:1005.4541v2 [physics.gen-ph] 1 Nov 2011 Holographic dark energy in Brans-Dicke theory with logarithmic correction A. Sheykhi, 1, 2, ∗ K. Karami, 3, 2, † M. Jamil, 4, ‡ E. Kazemi, 1 and M. Haddad 1 1 Department of Physics, Shahid Bahonar University, P.O. Box 76175, Kerman, Iran 2 Research Institute for Astronomy & Astrophysics of Maragha (RIAAM), Maragha, Iran 3 Department of Physics, University of Kurdistan, Pasdaran St., Sanandaj, Iran 4 Center for Advanced Mathematics and Physics, National University of Sciences and Technology, H-12, Islamabad, Pakistan Abstract In the derivation of holographic dark energy density, the area law of the black hole entropy plays a crucial role. However, the entropy-area relation can be modified from the inclusion of quantum effects, motivated from the loop quantum gravity, string theory and black hole physics. In this paper, we study cosmological implication of the interacting entropy-corrected holographic dark energy model in the framework of Brans-Dicke cosmology. We obtain the equation of state and the deceleration parameters of the entropy-corrected holographic dark energy in a non-flat Universe. As system’s IR cutoff we choose the radius of the event horizon measured on the sphere of the horizon, defined as L = ar(t). We find out that when the entropy-corrected holographic dark energy is combined with the Brans-Dicke field, the transition from normal state where w D > −1 to the phantom regime where w D < −1 for the equation of state of interacting dark energy can be more easily achieved for than when resort to the Einstein field equations is made. Keywords: Holographic dark energy . Brans-Dicke cosmology . Corrected entropy- area relation