Separability conditions and limit temperatures for entanglement detection in two-qubit HeisenbergXYZmodels
نویسندگان
چکیده
منابع مشابه
Simulation of n-qubit quantum systems. II. Separability and entanglement
Studies on the entanglement of n-qubit quantum systems have attracted a lot of interest during recent years. Despite the central role of entanglement in quantum information theory, however, there are still a number of open problems in the theoretical characterization of entangled systems that make symbolic and numerical simulation on n-qubit quantum registers indispensable for present-day resea...
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Institut für Theoretische Physik, Universität Innsbruck,A-6020 Innsbruck, Austria a Institut für Theoretische Physik, Universität Hannover, Hannover, Germany b Department of Mathematics, University of Bristol, University Walk, Bristol BS8 1TW, UK c H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK d BRIMS, Hewlett-Packard Laboratories, Stoke Gifford, Bri...
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The entanglement, one of the central mysteries of the quantum mechanics, plays a significant role in a variety of applications of the quantum information theory. A natural question in theoretical and experimental importance is whether it is possible to detect a universal entanglement without full diagnostics. The diagnostics relies on a set of quantum trajectories and their records from measure...
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Most major results in quantum information processing and communication do rely upon quantum entanglement as their key ingredient: quantum dense coding [1] and teleportation [2], quantum algorithms [3]-[7], quantum cryptography [8], multiparty quantum computation [9][10]. For historical and foundational reasons, which date back to the controversy raised by Einstein, Podolsky and Rosen in 1935 [1...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2004
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.69.052306