Browsing 02 Physical Sciences by Author "Feng Yuan"

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Browsing 02 Physical Sciences by Author "Feng Yuan"

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  • Boundary Effect Of Deterministic Dense Coding 
    Ji Zhengfeng; Feng Yuan; Duan Runyao; Ying Mingsheng (American Physical Soc, 2006)
    We present a rigorous proof of an interesting boundary effect of deterministic dense coding first observed by S. Mozes, J. Oppenheim, and B. Reznik [Phys. Rev. A 71, 012311 (2005)]. Namely, it is shown that d(2)-1 cannot ...
  • Condition And Capability Of Quantum State Separation 
    Feng Yuan; Duan Runyao; Ji Zhengfeng (American Physical Soc, 2005)
    The linearity of quantum operations puts many fundamental constraints on the information processing tasks we can achieve on a quantum system whose state is not exactly known, just as we observe in quantum cloning and quantum ...
  • Distinguishability of Quantum States by Separable Operations 
    Duan Runyao; Feng Yuan; Xin Yu; Ying Mingsheng (IEEE-Inst Electrical Electronics Engineers Inc, 2009)
    In this paper, we study the distinguishability of multipartite quantum states by separable operations. We first present a necessary and sufficient condition for a finite set of orthogonal quantum states to be distinguishable ...
  • Efficiency Of Deterministic Entanglement Transformation 
    Duan Runyao; Feng Yuan; Ji Zhengfeng; Ying Mingsheng (American Physical Soc, 2005)
    We prove that sufficiently many copies of a bipartite entangled pure state can always be transformed into some copies of another one with certainty by local quantum operations and classical communication. The efficiency ...
  • Entanglement-Assisted Transformation Is Asymptotically Equivalent To Multiple-Copy Transformation 
    Duan Runyao; Feng Yuan; Ying Mingsheng (American Physical Soc, 2005)
    We show that two ways of manipulating quantum entanglement-namely, entanglement-assisted local transformation [D. Jonathan and M. B. Plenio, Phys. Rev. Lett. 83, 3566 (1999)] and multiple-copy transformation [S. Bandyopadhyay, ...
  • Local Cloning Of Two Product States 
    Ji Zhengfeng; Feng Yuan; Ying Mingsheng (American Physical Soc, 2005)
    Local quantum operations and classical communication (LOCC) put considerable constraints on many quantum information processing tasks such as cloning and discrimination. Surprisingly, however, discrimination of any two ...
  • Locally undetermined states, generalized Schmidt decomposition, and application in distributed computing 
    Feng Yuan; Duan Runyao; Ying Mingsheng (Rinton Press, 2009)
    Multipartite quantum states that cannot be uniquely determined by their reduced states of all proper subsets of the parties exhibit some inherit `high-order' correlation. This paper elaborates this issue by giving necessary ...
  • Multiple-Copy Entanglement Transformation And Entanglement Catalysis 
    Duan Runyao; Feng Yuan; Li X; Ying Mingsheng (American Physical Soc, 2005)
    We prove that any multiple-copy entanglement transformation [S. Bandyopadhyay, V. Roychowdhury, and U. Sen, Phys. Rev. A 65, 052315 (2002)] can be implemented by a suitable entanglement-assisted local transformation [D. ...
  • Optimal Dense Coding With Arbitrary Pure Entangled States 
    Feng Yuan; Duan Runyao; Ji Zhengfeng (American Physical Soc, 2006)
    We examine dense coding with an arbitrary pure entangled state sharing between the sender and the receiver. Upper bounds on the average success probability in approximate dense coding and on the probability of conclusive ...
  • Perfect Distinguishability of Quantum Operations 
    Duan Runyao; Feng Yuan; Ying Mingsheng (The American Physical Society, 2009)
    We provide a feasible necessary and sufficient condition for when an unknown quantum operation (quantum device) secretly selected from a set of known quantum operations can be identified perfectly within a finite number ...
  • Predicate Transformer Semantics of Quantum Programs 
    Ying Mingsheng; Duan Runyao; Feng Yuan; Ji Zhengfeng (Cambridge University Press, 2010)
    This chapter presents a systematic exposition of predicate transformer semantics for quantum programs. It is divided into two parts: The first part reviews the state transformer (forward) semantics of quantum programs ...
  • Relation Between Catalyst-Assisted Transformation And Multiple-Copy Transformation For Bipartite Pure States 
    Feng Yuan; Duan Runyao; Ying Mingsheng (American Physical Soc, 2006)
    We show that in some cases, catalyst-assisted entanglement transformation cannot be implemented by multiple-copy transformation for pure states. This fact, together with the result we obtained in R. Y. Duan, Y. Feng, X. ...
  • Trade-Off Between Multiple-Copy Transformation And Entanglement Catalysis 
    Duan Runyao; Feng Yuan; Li X; Ying Mingsheng (American Physical Soc, 2005)
    We demonstrate that multiple copies of a bipartite entangled pure state may serve as a catalyst for certain entanglement transformations while a single copy cannot. Such a state is termed a
  • When Catalysis Is Useful For Probabilistic Entanglement Transformation 
    Ying Mingsheng; Duan Runyao; Feng Yuan (American Physical Soc, 2005)
    We determine all 2x2 quantum states that can serve as useful catalysts for a given probabilistic entanglement transformation, in the sense that they can increase the maximal transformation probability. When higher-dimensional ...