Fast and simple scheme for generating NOON states of photons in circuit QED.
The generation, manipulation and fundamental understanding of entanglement lies at very heart of quantum mechanics. Among various types of entangled states, the NOON states are a kind of special quantum entangled states with two orthogonal component states in maximal superposition, which have a wide range of potential applications in quantum communication and quantum information processing. Here, we propose a fast and simple scheme for generating NOON states of photons in two superconducting resonators by using a single superconducting transmon qutrit. Because only one superconducting qutrit and two resonators are used, the experimental setup for this scheme is much simplified when compared with the previous proposals requiring a setup of two superconducting qutrits and three cavities. In addition, this scheme is easier and faster to implement than the previous proposals, which require using a complex microwave pulse, or a small pulse Rabi frequency in order to avoid nonresonant transitions.
Department of Physics, Hangzhou Normal University, Hangzhou, Zhejiang 310036, China.
Qi-Ping
QP
Su
1] Department of Physics, Hangzhou Normal University, Hangzhou, Zhejiang 310036, China [2] State Key Laboratory of Precision Spectroscopy, Department of Physics, East China Normal University, Shanghai 200062, China.
Chui-Ping
CP
Yang
Department of Physics, Fuzhou University, Fuzhou 350116, China.
Shi-Biao
SB
Zheng