  Long-distance transfer of quantum states is an indispensable part of
large-scale quantum information processing. We propose a novel scheme for the
transfer of two-electron entangled states, from one edge of a quantum dot array
to the other by coherent adiabatic passage. This protocol is mediated by pulsed
tunneling barriers. In a second step, we seek for a speed up by shortcut to
adiabaticity techniques. This significantly reduces the operation time and,
thus, minimizes the impact of decoherence. For typical parameters of
state-of-the-art solid state devices, the accelerated protocol has an operation
time in the nanosecond range and terminates before a major coherence loss sets
in. The scheme represents a promising candidate for entanglement transfer in
solid state quantum information processing.
