Thermal entanglement in three-qubit Heisenberg models
نویسندگان
چکیده
منابع مشابه
Thermal entanglement in three-qubit Heisenberg models
Over the past few years much effort has been put into studying the entanglement of multipartite systems both qualitatively and quantitatively. Entangled states constitute a valuable resource in quantum information processing [1]. Quite recently, entanglement in quantum operations [2–4] and entanglement in indistinguishable fermionic and bosonic systems [5–7] have been considered. Entanglement i...
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Quantum entanglement is an important prediction of quantum mechanics and constitutes indeed a valuable resource in quantum information processing [1]. Much efforts are devoted to the study and characterization of it. Very recently one kind of natural entanglement, the thermal entanglement [2–7], is proposed and investigated. The investigations of this type of entanglement, groundstate entanglem...
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We show that the three-qubit entanglement classes: (0) Null, (1) Separable A-B-C, (2a) Biseparable A-BC, (2b) Biseparable B-CA, (2c) Biseparable C-AB, (3) W and (4) GHZ correspond respectively to ranks 0, 1, 2a, 2b, 2c, 3 and 4 of a Freudenthal triple system defined over the Jordan algebra C⊕C⊕C. We also compute the corresponding SLOCC orbits. ∗[email protected] †duminda.dahanayake@i...
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There is an ongoing effort to quantify entanglement of quantum pure states for systems with more than two subsystems. In this paper, we consider three general approaches to this problem for three-qubit states: choosing a basis which puts the state into a standard form, enumerating “local invariants” (functions of the state which are invariant under local unitary transformations), and using oper...
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ژورنال
عنوان ژورنال: Journal of Physics A: Mathematical and General
سال: 2001
ISSN: 0305-4470,1361-6447
DOI: 10.1088/0305-4470/34/50/312