Quantum state transfer via continuous quantum teleportation

Quantum state transfer is traditionally realized either by using quantum information carriers or quantum teleportation based on classical information transmission. In this work, we propose a continuous version of the quantum teleportation protocol to transfer the quantum states between different bosonic modes in superconducting systems. The scheme relies on only two-mode squeezing interaction and avoids all excitation-exchange operations between different parties based on both quantum and classical channels. The state transfer is coherent and bidirectional and works for encoded bosonic codes for quantum error correction. Our scheme also applies to other photonic and phononic systems and helps to deepen the understanding of quantum teleportation and quantum state transfer.