  We present a couple of protocols based on shortcut to adiabaticity techniques
for rapid generation of robust entangled Bell states in a system of two
two-state systems. Our protocols rely on the so-called transitionless quantum
driving (TQD) algorithm and Lewis-Riesenfeld invariant (LRI) method. Both TQD
and LRI methods result in high fidelity in population transfer.Our study shows
that it is possible to prepare an entangled state in infinitely short time
without losing robustness and efficiency.
