Large deviation for stochastic line integrals as L^p-currents

The large deviation principle for stochastic line integrals along Brownian paths on a compact Riemannian manifold is studied.We regard them as a random map on a Sobolev space of 1-forms.We show that the differentiability order of the Sobolev space can be chosen to be almost independent of the dimension of the underlying space by assigning higher integrability on 1-forms. The large deviation is formulated for the joint distribution of stochastic line integrals and the empirical distribution of a Brownian path. As the result, the rate function is given explicitly.