  We investigate the leading-twist transverse momentum-dependent distribution
functions (TMDs) for a physical electron, a spin-1/2 composite system
consisting of a bare electron and a photon, using the Basis Light-front
Quantization (BLFQ) framework. The light-front wave functions of the physical
electron are obtained from the eigenvectors of the light-front QED Hamiltonian.
We evaluate the TMDs using the overlaps of the light-front wave functions. The
BLFQ results are found to be in excellent agreement with those TMDs calculated
using lowest-order perturbation theory.
