  We develop a novel protocol to achieve entanglement creation between qubit
pairs by making a qubit pair experience an indefinite causal order process. In
particular, our protocol does not need two qubits to interact with each other,
meaning that only local operations are applied on individual qubits. In order
to demonstrate the usage of the protocol, we first identify the conditions
under which, EPR pairs, the maximally entangled states emerge from our
protocol. Furthermore, we show that, although our protocol is not
deterministic, the success probability of getting an EPR pair could be
non-vanishing, even comparably high enough. Our result not only sheds new light
on entanglement creation, but revealing that a quantum switch has further
potential to be explored.
