We propose an experimental realisation of the protocol for the counterfactual
disembodied transport of an unknown qubit—or what we call counterportation—
where sender and receiver, remarkably, exchange no particles. We employ
cavity quantum electrodynamics, estimating resources for beating the classical
fidelity limit—except, unlike teleportation, no preshared entanglement
nor classical communication are required. Our approach is multiple orders
of magnitude more efficient in terms of physical resources than previously
proposed implementation, paving the way for a demonstration using existing
imperfect devices. Surprisingly, while such communication is intuitively explained
in terms of “interaction-free” measurement and the Zeno effect, we
show that neither is necessary, with far-reaching implications in support of an
underlying physical reality. We go on to characterise an explanatory framework
for counterportation starting from constructor theory: local wormholes.
Conversely, a counterportation experiment demonstrating the traversability of
space, by means of what is essentially a 2-qubit exchange-free quantum computer,
can point to the existence in the lab of such traversable wormholes.