207 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Institute of Theoretical PhysicsCN43 papers
- Chinese Academy of SciencesCN9 papers
- Xi'an Jiaotong UniversityCN9 papers
- Beijing Normal UniversityCN8 papers
- Taiyuan University of TechnologyCN7 papers
- Lanzhou UniversityCN6 papers
- Shanxi UniversityCN6 papers
- Shanxi Normal UniversityCN5 papers
- Xiamen UniversityCN4 papers
- Chongqing University of Posts and TelecommunicationsCN3 papers
- Institute of PhysicsPL3 papers
- North University of ChinaCN3 papers
27 papers · 1 filter
Complete monogamy of the multipartite quantum mutual information
Yu Guo, Lizhong Huang
Quantum mutual information (QMI) not only displays the mutual information in the system but also demonstrates some quantum correlation beyond entanglement. We explore here the two…
When is a Genuine Multipartite Entanglement Measure Monogamous?
Yu Guo
A crucial issue in quantum communication tasks is characterizing how quantum resources can be quantified and distributed over many parties. Consequently, entanglement has been expl…
Genuine multipartite entanglement measure
Yu Guo, Yanping Jia, Xinping Li +1
Quantifying genuine entanglement is a crucial task in quantum information theory.In this work, we give an approach of constituting genuine -partite entanglement measures from an…
Monogamy of quantum discord
Yu Guo, Lizhong Huang, Yang Zhang
The original quantum discord (QD) is shown to be not monogamous except for the three-qubit states. Recently, a complete monogamy relation for multiparty quantum system was establis…
Multipartite Entanglement Measure and Complete Monogamy Relation
Yu Guo, Lin Zhang
Although many different entanglement measures have been proposed so far, much less is known in the multipartite case, which leads to the previous monogamy relations in literatures…
Strict entanglement monotonicity under local operations and classical communication
Yu Guo
Entanglement monotone is defined as a convex measure of entanglement that does not increase on average under local operations and classical communication (LOCC). Here we call an en…
Creation of superposition of arbitrary states encoded in two three-dimensional cavities
Tong Liu, Yang Zhang, Bao-qing Guo +2
The principle of superposition is a key ingredient for quantum mechanics. A recent work [M. Oszmaniec et al., Phys. Rev. Lett. 116, 110403 (2016)] has shown that a quantum adder th…
Monogamy of the Entanglement of Formation
Yu Guo, Gilad Gour
We show that any measure of entanglement that on pure bipartite states is given by a strictly concave function of the reduced density matrix is monogamous on pure tripartite states…
Local quantum uncertainty guarantees the measurement precision for two coupled two-level systems in non-Markovian environment
Shao-xiong Wu, Yang Zhang, Chang-shui Yu
Quantum Fisher information (QFI) is an important feature for the precision of quantum parameter estimation based on the quantum Cramér-Rao inequality. When the quantum state satisf…
Any entanglement of assistance is polygamous
Yu Guo
We propose a condition for a measure of quantum correlation to be polygamous without the traditional polygamy inequality. It is shown to be equivalent to the standard polygamy ineq…
Monogamy of entanglement without inequalities
Gilad Gour, Yu Guo
We provide a fine-grained definition for monogamous measure of entanglement that does not invoke any particular monogamy relation. Our definition is given in terms an equality, as…
Discordlike correlation of bipartite coherence
Yu Guo, Sumit Goswami
Quantum discord has been studied extensively as a measure of non-classical correlations which includes entanglement as a subset. Although it is well known that non-zero discord can…
Constructing UMEB from maximally entangled basis
Yu Guo
A new way of constructing unextendible maximally entangled basis (UMEB) from maximally entangled basis (MEB) is proposed. Consequently, it is shown that if there is an -member U…
Conditions for coherence transformations under incoherent operations
Shuanping Du, Zhaofang Bai, Yu Guo
We build the counterpart of the celebrated Nielsen's theorem for coherence manipulation in this paper. This offers an affirmative answer to the open question: whether, given two st…
Entangled bases with fixed Schmidt number
Yu Guo, Shuanping Du, Xiulan Li +1
An entangled basis with fixed Schmidt number (EBk) is a set of orthonormal basis states with the same Schmidt number in a product Hilbert space $\mathbb{C}^d\otimes\mathbb{…
Multipartite unextendible entangled basis
Yu Guo, Yanping Jia, Xiulan Li
The unextendible entangled basis with any arbitrarily given Schmidt number (UEBk) in is proposed in [Phys. Rev. A 90 (2014) 054303], $…
Non-commutativity measure of quantum discord
Yu Guo
Quantum discord is a manifestation of quantum correlations due to non-commutativity rather than entanglement. Two measures of quantum discord by the amount of non-commutativity via…
Quantum correlation induced by the average distance between the reduced states
Yu Guo, Xiulan Li, Bo Li +1
A new quantum correlation in terms of the average distance between the reduced state and the -th output reduced states under local von Neumann measurements is proposed. It is sh…
When quantum channel preserves product states
Yu Guo, Zhaofang Bai, Shuanping Du +1
Product states are always considered as the states that don't contain quantum correlation. We discuss here when a quantum channel sends the product states to themselves. The exact…
Quantum correlation exists in any non-product state
Yu Guo, Shengjun Wu
Simultaneous existence of correlation in complementary bases is a fundamental feature of quantum correlation, and we show that this characteristic is present in any non-product bip…
Unextendible entangled bases with fixed Schmidt number
Yu Guo, Shengjun Wu
The unextendible product basis (UPB) is generalized to the unextendible entangled basis with any arbitrarily given Schmidt number (UEBk) for any bipartite system $\mathbb{C}^d\…
The CHSH-type inequalities for infinite-dimensional quantum systems
Yu Guo
By establishing CHSH operators and CHSH-type inequalities, we show that any entangled pure state in infinite-dimensional systems is entangled in a subspace. We find tha…
A generalization of Schmidt number for multipartite states
Yu Guo, Heng Fan
The Schmidt number is of crucial importance in characterizing the bipartite pure states. We explore and propose here a generalization of Schmidt number for states in multipartite s…
Local channels preserving maximal entanglement or Schmidt number
Yu Guo, Zhaofang Bai, Shuanping Du
Maximal entanglement and Schmidt number play an important role in various quantum information tasks. In this paper, it is shown that a local channel preserves maximal entanglement…