  We propose an experimental setup to test the role of curved spacetime on
entanglement extraction from the vacuum of a quantum field to a pair of
artificial atoms. In particular, we consider two superconducting qubits coupled
to a dc-SQUID array embedded into an open microwave transmission line, where a
suitable external bias is able to mimic a spacetime containing a traversable
wormhole. We find that the amount of vacuum entanglement that can be extracted
by the superconducting qubits depends on the parameters of the wormhole. At
some distances qubits that would remain separable in flat spacetime become
entangled due to the presence of the effective wormhole background.
