21 citations · 32 across the 5 of their papers we have counts for
11 papers · 1 filter
Quantum Discord for multiqubit Systems
Bo Li, Chen-Lu Zhu, Xiao-Bin Liang +2
We evaluate analytically the quantum discord for a large family of multiqubit states. It is interesting to note that the quantum discord of three-qubits and five-qubits is the same…
Local quantum Fisher information and one-way quantum deficit in spin- Heisenberg chain with three-spin interaction
Biao-Liang Ye, Bo Li, Xiao-Bin Liang +1
We explore quantum phase transitions in the spin-1/2 chain with three-spin interaction in terms of local quantum Fisher information and one-way quantum deficit, together with…
Optimal approximations of available states and a triple uncertainty relation
Xiao-Bin Liang, Bo Li, Liang Huang +3
We investigate the optimal convex approximation of the quantum state with respect to a set of available states. By isometric transformation, we have presented the general mathemati…
Circuit QED: single-step realization of a multiqubit controlled phase gate with one microwave photonic qubit simultaneously controlling microwave photonic qubits
Biaoliang Ye, Zhen-Fei Zheng, Yu Zhang +1
We present a novel method to realize a multi-target-qubit controlled phase gate with one microwave photonic qubit simultaneously controlling target microwave photonic qubits.…
Quantum Fisher information and coherence in one-dimensional spin models with Dzyaloshinsky-Moriya interactions
Biao-Liang Ye, Bo Li, Zhi-Xi Wang +2
We investigate quantum phase transitions in spin models using Dzyaloshinsky-Moriya (DM) interactions. We identify the quantum critical points via quantum Fisher information an…
Complete Optimal Convex Approximations of Qubit States under Distance
Xiao-Bin Liang, Bo Li, Biao-Liang Ye +2
We consider the optimal approximation of arbitrary qubit states with respect to an available states consisting the eigenstates of two of three Pauli matrices, the -distance of…