Preparation of Greenberger-Horne-Zeilinger Entangled States in the Atom-Cavity Systems
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Theoretical Physics"
DOI: 10.1007/s10773-018-3679-5
Abstract: We present a new simple scheme for the preparation of Greenberger-Horne-Zeilinger maximally entangled states of two two-level atoms. The distinct feature of the effective Hamiltonian is that there is no energy exchange between the atoms… read more here.
Keywords: preparation greenberger; horne zeilinger; cavity; greenberger horne ... See more keywords
Non-ideal teleportation of tripartite entanglement: Einstein–Podolsky–Rosen versus Greenberger–Horne–Zeilinger schemes
Sign Up to like & getrecommendations! Published in 2017 at "Quantum Information Processing"
DOI: 10.1007/s11128-017-1705-9
Abstract: Channels composed by Einstein–Podolsky–Rosen (EPR) pairs are capable of teleporting arbitrary multipartite states. The question arises whether EPR channels are also optimal against imperfections. In particular, the teleportation of Greenberger–Horne–Zeilinger states (GHZ) requires three EPR… read more here.
Keywords: podolsky rosen; horne zeilinger; greenberger horne; teleportation ... See more keywords
Precise detection of multipartite entanglement in four-qubit Greenberger–Horne–Zeilinger diagonal states
Sign Up to like & getrecommendations! Published in 2018 at "Frontiers of Physics"
DOI: 10.1007/s11467-018-0799-6
Abstract: We propose a method of constructing the separability criteria for multipartite quantum states on the basis of entanglement witnesses. The entanglement witnesses are obtained by finding the maximal expectation values of Hermitian operators and then… read more here.
Keywords: four qubit; qubit greenberger; horne zeilinger; greenberger horne ... See more keywords
Bell inequalities tailored to the Greenberger–Horne–Zeilinger states of arbitrary local dimension
Sign Up to like & getrecommendations! Published in 2019 at "New Journal of Physics"
DOI: 10.1088/1367-2630/ab4d9f
Abstract: In device-independent quantum information processing Bell inequalities are not only used as detectors of nonlocality, but also as certificates of relevant quantum properties. In order for these certificates to work, one very often needs Bell… read more here.
Keywords: maximally violated; dimension; bell inequalities; horne zeilinger ... See more keywords
Generating Greenberger-Horne-Zeilinger states with squeezing and postselection
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DOI: 10.1103/physreva.101.062303
Abstract: Many quantum state preparation methods rely on a combination of dissipative quantum state initialization followed by unitary evolution to a desired target state. Here we demonstrate the usefulness of quantum measurement as an additional tool… read more here.
Keywords: state; quantum; postselection; horne zeilinger ... See more keywords
Conversion from W to Greenberger-Horne-Zeilinger states in the Rydberg-blockade regime of neutral-atom systems: Dynamical-symmetry-based approach
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review A"
DOI: 10.1103/physreva.103.032427
Abstract: We investigate the possibilities for a deterministic conversion between two important types of maximally entangled multiqubit states, namely, $W$ and Greenberger-Horne-Zeilinger (GHZ) states, in the Rydberg-blockade regime of a neutral-atom system where each atom is… read more here.
Keywords: conversion; approach; rydberg blockade; horne zeilinger ... See more keywords
Preparing Greenberger-Horne-Zeilinger and W states on a long-range Ising spin model by global controls
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.95.032340
Abstract: Jiahui Chen, ∗ Hui Zhou, Changkui Duan, † and Xinhua Peng 3, ‡ Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui… read more here.
Keywords: states long; zeilinger states; physics; horne zeilinger ... See more keywords
Direct conversion of Greenberger-Horne-Zeilinger state to Knill-Laflamme-Milburn state in decoherence-free subspace.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.458723
Abstract: Several schemes are proposed to realize the conversion of photonic polarized-entangled Greenberger-Horne-Zeilinger state to Knill-Laflamme-Milburn state in decoherence-free subspace (DFS) via weak cross-Kerr nonlinearity and X-quadrature homodyne measurement with high fidelity. DFS is introduced to… read more here.
Keywords: state; decoherence; greenberger horne; zeilinger state ... See more keywords