  We study shot noise for entangled electrons in a 4-lead beam-splitter with
one incoming lead driven by adiabatically rotating magnetic fields. We propose
a setup of an adiabatically rotating magnetic field therefor, which is
appropriate for an electron beam to transport through. Using the scattering
matrix approach, we find that shot noise for the singlet and that for the
entangled triplet oscillates between bunching and antibunching due to the
influence of the Berry phase. It provides us a new approach for testing the
Berry phase in electron transport on the basis of entanglement.
