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We investigate deep inelastic scattering off the polarized "neutron" usinggauge/string duality. The "neutron" corresponds to a supergravity mode of theneutral dilatino. Through introducing the Pauli interaction term into theaction in $\textrm{AdS}_{5}$ space, we calculate the polarized deep inelasticstructure functions of the "neutron" in supergravity approximation at large t'Hooft coupling $\lambda$ and finite $x$ with $\lambda^{-1/2}\ll x<1$. Incomparison with the charged dilatino "proton," which has been obtained in theprevious work by Gao and Xiao, we find the structure functions of the "neutron"are power suppressed at the same order as the ones of the "proton." Especially,we find the Burkhardt-Cottingham-like sum rule, which is satisfied in the workby Gao and Xiao, is broken due to the Pauli interaction term. We alsoillustrate how such a Pauli interaction term can arise naturally from higherdimensional fermion-graviton coupling through the usual Kaluza-Klein reduction.

Polarized Deep Inelastic Scattering Off the "Neutron" From Gauge/String Duality