Browsing 02 Physical Sciences by Author "Ying Mingsheng"

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Browsing 02 Physical Sciences by Author "Ying Mingsheng"

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  • Ancilla-Assisted Discrimination Of Quantum Gates 
    Chen Jianxin; Ying Mingsheng (Rinton Press, Inc, 2008)
    The intrinsic idea of superdense coding is to find as many gates as possible such that they can be perfectly discriminated. In this paper, we consider a basic scheme of discrimination of quantum gates, called ancilla-assisted ...
  • Any 2 Circle Times N Subspace Is Locally Distinguishable 
    Yu Nk; Duan Runyao; Ying Mingsheng (Amer Physical Soc, 2011)
    A subspace of a multipartite Hilbert space is said to be locally indistinguishable if any orthonormal basis of this subspace cannot be perfectly distinguished by local operations and classical communication. Previously it ...
  • 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 ...
  • Deterministic Distributed Dense Coding With Stabilizer States 
    Wang Gehong; Ying Mingsheng (Amer Physical Soc, 2008)
    We consider the possibility of using stabilizer states to perform deterministic dense coding among multiple senders and a single receiver. In the model we studied, the utilized stabilizer state is partitioned into several ...
  • Discrimination Between Pure States And Mixed States 
    Zhang Chengqi; Wang Gehong; Ying Mingsheng (American Physical Soc, 2007)
    In this paper, we discuss the problem of determining whether a quantum system is in a pure state, or in a mixed state. We apply two strategies to settle this problem: the unambiguous discrimination and the maximum confidence ...
  • 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 Indistinguishable Subspaces Spanned By Three-Qubit Unextendible Product Bases 
    Duan Runyao; Xin Yu; Ying Mingsheng (Amer Physical Soc, 2010)
    We study the local distinguishability of general multiqubit states and show that local projective measurements and classical communication are as powerful as the most general local measurements and classical communication. ...
  • 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 ...
  • Local Unambiguous Discrimination With Remaining Entanglement 
    Li Yuefeng; Duan Runyao; Ying Mingsheng (Amer Physical Soc, 2010)
    A bipartite state, which is secretly chosen from a finite set of known entangled pure states, cannot immediately be useful in standard quantum information processing tasks. To effectively make use of the entanglement ...
  • The LU-LC conjecture is false 
    Ji Zhengfeng; Chen Jianxin; Wei Zhaohui; Ying Mingsheng (Rinton Press, 2010)
    The LU-LC conjecture is an important open problem concerning the structure of entanglement of states described in the stabilizer formalism. It states that two local unitary equivalent stabilizer states are also local ...
  • Majorization In Quantum Adiabatic Algorithms 
    Wei Z; Ying Mingsheng (American Physical Soc, 2006)
    The majorization theory has been applied to analyze the mathematical structure of quantum algorithms. An empirical conclusion by numerical simulations obtained in the previous literature indicates that step-by-step ...
  • Multipartite Unlockable Bound Entanglement In The Stabilizer Formalism 
    Wang Gehong; Ying Mingsheng (American Physical Soc, 2007)
    We find an interesting relationship between multipartite bound entangled states and the stabilizer formalism. We prove that, if a set of commuting operators from the generalized Pauli group on n qudits satisfy certain ...
  • 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 Conclusive Discrimination Of Two States Can Be Achieved Locally 
    Cao H; Ji Zhengfeng; Ying Mingsheng (American Physical Soc, 2004)
    This paper constructs a local operation and classical communication protocol that achieves the global optimality of conclusive discrimination of any two pure states with arbitrary a priori probability. This can be interpreted ...
  • Optimal Simulation Of A Perfect Entangler 
    Yu Nk; Duan Runyao; Ying Mingsheng (Amer Physical Soc, 2010)
    A2 circle times 2 unitary operation is called a perfect entangler if it can generate a maximally entangled state from some unentangled input. We study the following question: How many runs of a given two-qubit entangling ...
  • 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 ...
  • Perfect Many-To-One Teleportation With Stabilizer States 
    Wang Gehong; Ying Mingsheng (Amer Physical Soc, 2008)
    We study the possibility of performing perfect teleportation of unknown quantum states from multiple senders to a single receiver with a previously shared stabilizer state. In the model we considered, the utilized stabilizer ...