title: Efficient transfer of an arbitrary qutrit state in circuit quantum electrodynamics.
abstract: Compared with a qubit, a qutrit (i.e., three-level quantum system) has a larger Hilbert space and thus can be used to encode more information in quantum information processing and communication. Here, we propose a method to transfer an arbitrary quantum state between two flux qutrits coupled to two resonators. This scheme is simple because it only requires two basic operations. The state-transfer operation can be performed fast because only resonant interactions are used. Numerical simulations show that the high-fidelity transfer of quantum states between the two qutrits is feasible with current circuit-QED technology. This scheme is quite general and can be applied to accomplish the same task for other solid-state qutrits coupled to resonators.
authors.forename: Tong
authors.initials: T
authors.lastname: Liu
authors.forename: Shao-Jie
authors.initials: SJ
authors.lastname: Xiong
authors.forename: Xiao-Zhi
authors.initials: XZ
authors.lastname: Cao
authors.forename: Qi-Ping
authors.initials: QP
authors.lastname: Su
authors.forename: Chui-Ping
authors.initials: CP
authors.lastname: Yang