Efficient transfer of an arbitrary qutrit state in circuit quantum electrodynamics

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...

Full description

Saved in:
Bibliographic Details
Published in:Optics letters 2015-12, Vol.40 (23), p.5602-5605
Main Authors: Liu, Tong, Xiong, Shao-Jie, Cao, Xiao-Zhi, Su, Qi-Ping, Yang, Chui-Ping
Format: Article
Language:English
Subjects:
Circuits
Communication systems
Feasibility
Flux
Mathematical models
Qubits (quantum computing)
Resonators
Tasks
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.40.005602