Chinese Acad Sci, IHEP, Div Theoret Phys, Beijing 100049, Peoples R China
; Chinese Acad Sci, IHEP, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
In this paper we study dynamical CPT-violation in the neutrino sector as induced by the dark energy of the universe. Specifically we consider a dark energy model where the dark energy scalar derivatively interacts with the right-handed neutrinos. This type of derivative coupling leads to cosmological CPT-violation during the evolution of the background field of the dark energy. We calculate the induced CPT-violation of left-handed neutrinos and find that the CPT-violation produced in this way is consistent with the present experimental limit and sensitive to future neutrino oscillation experiments such as the neutrino factory.