T violation in B→K*l⁺l^- from supersymmetry

We propose to use T-odd momentum correlations as physical observables to study T violation in B → K*l⁺l^-(l = e,μ) decays. We show that these observables are zero in the standard model but sizable at the level of 10% in the supersymmetric model. These large T violating effects are measurable at the B factories in KEK and SLAC and future hadron colliders. We also point out that the T violating effects are insensitive to nonperturbative QCD contributions.