Results 1 to 10 of about 376,550 (287)
Experimental investigation on the geometry of GHZ states [PDF]
Scientific Reports, 2017 AbstractGreenberger-Horne-Zeilinger (GHZ) states and their mixtures exhibit fascinating properties. A complete basis of GHZ states can be constructed by properly choosing local basis rotations. We demonstrate this experimentally for the Hilbert space $${{\mathbb{C}}}_{2}^{\otimes 4}$$
Carvacho, Gonzalo +4 more
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Optimal distillation of a GHZ state [PDF]
, 2000 We present the optimal local protocol to distill a Greenberger-Horne-Zeilinger (GHZ) state from a single copy of any pure state of three qubits.Comment: RevTex, 4 pages, 2 figures.
A. Acín +13 more
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Comment on Quantum teleportation via GHZ-like state [PDF]
International Journal of Theoretical Physics, 2010 Recently Yang et al. [Int. J. Theo. Phys. 48 (2009) 516] have shown that an unknown qubit can be teleported by using a particular GHZ-like state as quantum channel. However, there are several errors in the calculation which lead to incorrect conclusions.
Anindita Banerjee +5 more
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Hardy's nonlocality for generalized n-particle GHZ states [PDF]
Physics Letters A, 2004 In this paper we extend Hardy's nonlocality proof for two spin-1/2 particles [PRL 71 (1993) 1665] to the case of n spin-1/2 particles configured in the generalized GHZ state.
Brukner +19 more
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Acta Physica Polonica A, 1998 The premises of the Einstein-Podolsky-Rosen argument for their claim that quantum mechanics is an incomplete theory are inconsistent when applied to three-particle systems in entangled Greenberger-Horne-Zeilinger states. However, thus far there is no experimental confirmation for existence of such states.
M. Żukowski +3 more
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Preparation of multiphoton high-dimensional GHZ states
Optics Express, 2023 The physics associated with multipartite high-dimensional entanglement is different from that of multipartite two-dimensional entanglement. Therefore, preparing multipartite high-dimensional entanglements with linear optics is challenging. This study proposes a preparation protocol of multiphoton GHZ state with arbitrary dimensions for optical systems.
Wen-Bo Xing +5 more
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Quantum Tomography of the GHZ State [PDF]
Fortschritte der Physik, 2000 We present a method of generation of the Greenberger-Horne-Zeilinger state involving type II and type I parametric downconversion, and triggering photodetectors. The state generated by the proposed experimental set-up can be reconstructed through multi-mode quantum homodyne tomography. The feasibility of the measurement is studied on the basis of Monte-
G M D'Ariano +3 more
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Sharp Contradiction for Local-Hidden-State Model in Quantum Steering [PDF]
, 2016 In quantum theory, no-go theorems are important as they rule out the existence of a particular physical model under consideration. For instance, the Greenberger-Horne-Zeilinger (GHZ) theorem serves as a no-go theorem for the nonexistence of local hidden ...
Chen, Jing-Ling +3 more
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Entanglement of three-qubit Greenberger-Horne-Zeilinger-symmetric states [PDF]
, 2012 The first characterization of mixed-state entanglement was achieved for two-qubit states in Werner's seminal work [Phys. Rev. A 40, 4277 (1989)]. A physically important extension of this result concerns mixtures of a pure entangled state (such as the ...
Eltschka, Christopher, Siewert, Jens
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Three-tangle for mixtures of generalized GHZ and generalized W states [PDF]
, 2007 We give a complete solution for the three-tangle of mixed three-qubit states composed of a generalized GHZ state, a|000>+b|111>, and a generalized W state, c|001>+d|010>+f|100>. Using the methods introduced by Lohmayer et al.
A Osterloh +11 more
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