Generalized coherence concurrence and path distinguishability
نویسندگان
چکیده
منابع مشابه
Generalized Coherence Concurrence and Path distinguishability
We propose a new family of coherence monotones, named the generalized coherence concurrence (or coherence k-concurrence), which is an analogous concept to the generalized entanglement concurrence. The coherence k-concurrence of a state is nonzero if and only if the coherence number (a recently introduced discrete coherence monotone) of the state is not smaller than k, and a state can be convert...
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We investigate the k-concurrence entanglement convertability theorem of coherence. By introducing the coherence number, which is the generalization of coherence rank to mixed states, we present a necessary and sufficient condition for a coherent mixed state to be converted to an entangled state of nonzero k-concurrence. We also quantitatively compare the amount of k-concurrence entanglement wit...
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A scheme for generating an entangled state in a two spin1/2 system by means of a spin-dependent potential scattering of another qubit is presented and analyzed in three dimensions. The entanglement is evaluated in terms of the concurrence both at the lowest and in full order in perturbation with an appropriate renormalization for the latter, and its characteristics are discussed in the context ...
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We consider the maximum bipartite entanglement that can be distilled from a single copy of a multipartite mixed entangled state, where we focus mostly on d × d × n-dimensional tripartite mixed states. We show that this assisted entanglement, when measured in terms of the generalized concurrence (named G-concurrence) is (tightly) bounded by an entanglement monotone, which we call the G-concurren...
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We discuss a kind of generalized concurrence for a class of high dimensional quantum pure states such that the entanglement of formation is a monotonically increasing convex function of the generalized concurrence. An analytical expression of the entanglement of formation for a class of high dimensional quantum mixed states is obtained. PACS numbers: 03.65.Bz, 89.70.+c
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ژورنال
عنوان ژورنال: Journal of Physics A: Mathematical and Theoretical
سال: 2017
ISSN: 1751-8113,1751-8121
DOI: 10.1088/1751-8121/aa908d