  Efficient generation of spatially delocalised entangled states is at the
heart of quantum information science. Generally flying qubits are proposed for
long range entangling interactions, however here we introduce a bus-mediated
alternative for this task. Our scheme permits efficient and flexible generation
of deterministic two-qubit operator measurements and has links to the important
concepts of mode-entanglement and repeat-until-success protocols. Importantly,
unlike flying qubit protocols, our bus particle never contains information
about the individual quantum states of the particles, hence is
information-free.
