Relativistic Particles And The Cosmological Constant
arXiv:hep-th/0311038
Abstract
We study a general relativistic particle action obtained by incorporating the Hamiltonian constraints into the formalism as a toy model for general relativity and string theory. We show how a non-vanishing cosmological constant and a weakening of gravity at short distances may be interpreted as evidences for the existence of gravitational dipoles.
Latex, no figures, new equations