  We propose to implement tunable interfaces for realizing universal quantum
computation with topological qubits. One interface is between the topological
and superconducting qubits, which can realize arbitrary single-qubit gate on
the topological qubit. When two qubits are involved, the interface between the
topological qubits and a microwave cavity can induce a nontrivial two-qubit
gate, which can not be constructed based on braiding operations. The two
interfaces, being tunable via an external magnetic flux, may serve as the
building blocks towards universal quantum computation with topological qubits.
