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8 papers · 2 filters
Circuit QED: Cross-Kerr-effect induced by a superconducting qutrit without classical pulses
Tong Liu, Chui-ping Yang, Yang Zhang +2
The realization of cross-Kerr nonlinearity is an important task for many applications in quantum information processing. In this work, we propose a method for realizing cross-Kerr…
Transferring arbitrary d-dimensional quantum states of a superconducting qudit in circuit QED
Tong Liu, Qi-Ping Su, Jin-Hu Yang +4
A qudit (-level quantum systems) has a large Hilbert space and thus can be used to achieve many quantum information and communication tasks. Here, we propose a method to transfe…
Efficient transfer of an arbitrary qutrit state in circuit QED
Tong Liu, Shao-Jie Xiong, Xiao-Zhi Cao +2
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…
Product states and Schmidt rank of mutually unbiased bases in dimension six
Lin Chen, Li Yu
We show that if a set of four mutually unbiased bases (MUBs) in exists and contains the identity, then any other basis in the set contains at most two product states…
Entangling two oscillators with arbitrary asymmetric initial states
Chui-Ping Yang, Qi-Ping Su, Shi-Biao Zheng +2
A Hamiltonian is presented, which can be used to convert any asymmetric state of two oscillators and into an entangled state. Furthermore, with…
Comparison of the sensitivity to systematic errors between non-adiabatic non-Abelian geometric gates and their dynamical counterparts
Shi-Biao Zheng, Chui-Ping Yang, Franco Nori
We investigate the effects of systematic errors of the control parameters on single-qubit gates based on non-adiabatic non-Abelian geometric holonomies and those relying on purely…