Search results for "Greenberger–Horne–Zeilinger state"

showing 3 items of 3 documents

Entanglement detection in Josephson nanocircuits

2002

We describe a possible experimental scheme to generate and detect entanglement between charge states in superconducting nanocircuits, discriminating such entanglement from classical correlations. The case of maximally entangled singlet and GHZ states of two and three coupled Josephson junctions is discussed as an example.

Josephson effectSuperconductivityPhysicsGreenberger–Horne–Zeilinger stateCondensed Matter::SuperconductivityQubitQuantum mechanicsCharge (physics)Quantum PhysicsSinglet stateQuantum entanglementCooper pairAtomic and Molecular Physics and Optics
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Entangling a Three High-Q Cavity System in a GHZ State

2001

PhysicsGreenberger–Horne–Zeilinger stateQuantum mechanicsGeneral Physics and AstronomyAtomic physicsFortschritte der Physik
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GHZ state generation of three Josephson qubits in the presence of bosonic baths

2013

We analyze an entangling protocol to generate tripartite Greenberger-Horne-Zeilinger states in a system consisting of three superconducting qubits with pairwise coupling. The dynamics of the open quantum system is investigated by taking into account the interaction of each qubit with an independent bosonic bath with an ohmic spectral structure. To this end a microscopic master equation is constructed and exactly solved. We find that the protocol here discussed is stable against decoherence and dissipation due to the presence of the external baths.

Quantum decoherencequantum statistical methodFOS: Physical sciencesQuantum entanglement01 natural sciences010305 fluids & plasmasSuperconductivity (cond-mat.supr-con)quantum fluctuations quantum noise quantum jumpQuantum nonlocalityOpen quantum systemQuantum mechanics0103 physical sciencesMaster equationdecoherence010306 general physicsSuperconductivityPhysicsQuantum PhysicsCondensed Matter - Superconductivityquantum nonlocalityQuantum PhysicsCondensed Matter PhysicsAtomic and Molecular Physics and OpticsGreenberger–Horne–Zeilinger stateQubitopen systemQuantum Physics (quant-ph)entanglementquantum state engineering and measurementJournal of Physics B: Atomic, Molecular and Optical Physics
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