217 citations · 1.1k across the 99 of their papers we have counts for
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Universal upper bound for the Holevo information induced by a quantum operation
Lin Zhang, Junde Wu, Shao-Ming Fei
Let $\cH_A\ot \cH_B$ be a bipartite system and a quantum state on $\cH_A\ot \cH_B$, $ρ_A = \Ptr{B}{ρ_{AB}}$, $ρ_B = \Ptr{A}{ρ_{AB}}$. Then each quantum operation on…
Samuel multiplicities and Browder Spectrum of Operator Matrices
Shifang Zhang, Junde Wu
we show that the definitions of some classes of semi-Fredholm operators, which use the language of algebra and first introduced by X. Fang in [8], are equivalent to that of some we…
On Conjectures of Classical and Quantum Correlations in Bipartite States
Lin Zhang, Junde Wu
In this paper, two conjectures which were proposed in [Phys. Rev. A \textbf{82}, 052122(2010)] on the correlations in a bipartite state are studied. If the mutual informat…
Von Neumann Entropy-Preserving Quantum Operations
Lin Zhang, Junde Wu
For a given quantum state and two quantum operations and , the information encoded in the quantum state is quantified by its von Neumann entropy . By the famou…
The Dynamical Additivity And The Strong Dynamical Additivity Of Quantum Operations
Lin Zhang, Junde Wu
In the paper, the dynamical additivity of bi-stochastic quantum operations is characterized and the strong dynamical additivity is obtained under some restrictions.