The D-brane of dimension in type IIA string theory. The worldline theory of a collection of D0-branes is supposed to be described by the BFSS matrix model. The non-perturbative limit of type IIA superstring theory is supposed to be M-theory compactified on a circle. The degree-2 RR-field that the D0-brane is charged under, with local potential 1-form may be understood as the KK-field induced by this compactification, hence as one part of the field of gravity in 11-dimensional...