  We propose a new scenario of incorporating neutrino masses in models of TeV
scale gravity and large extra dimensions, which can explain the dark energy
problem through formation of neutrino condensates. The smallness of the
neutrino masses and the scale of dark energy is protected to be small by the
lepton number symmetry, which is broken in a distant brane, such that all
lepton number violating effects are suppressed by the distance factor in the
extra dimensions. The interactions of any bulk scalar particles are also
suppressed by the distance factor. A lepton number violating soft-term is also
induced from the distant brane, providing us a light pseudo-Nambu-Goldstone
boson which becomes the mediator of the attractive force that forms the
condensates.
