Quantum entanglement distribution with hybrid parity gate

Abstract

We propose a scheme for entanglement distribution among different single atoms trapped in separated cavities. In our scheme, by reflecting an input coherent optical pulse from a cavity with a single trapped atom, a controlled phase-shift gate between the atom and the coherent optical pulse is achieved. Based on this gate and homodyne detection, we construct an $n$-qubit parity gate and show its use for distribution of a large class of entangled states in one shot, including the GHZ state $|GH{Z}_n⟩$, W state $|W_n⟩$, Dicke state $|D_{n,k}⟩$ and certain sums of Dicke states . We also show such distribution could be performed with high success probability and high fidelity even in the presence of channel loss.

arXiv comment8 pages, 6 figures

References in corpus (43)

• Quantum Cryptography
• The Quantum Internet
• Long-distance quantum communication with atomic ensembles and linear optics
• Quantum-enhanced measurements: beating the standard quantum limit
• Quantum state transfer and entanglement distribution among distant nodes in a quantum network
• How to share a quantum secret
• Scalable multi-particle entanglement of trapped ions
• Scalable photonic quantum computation through cavity-assisted interaction
• Strong atom-field coupling for Bose-Einstein condensates in an optical cavity on a chip
• A near deterministic linear optical CNOT gate
• Four qubits can be entangled in nine different ways
• Quantum telecloning and multiparticle entanglement
• Proposal for teleportation of an atomic state via cavity decay
• Probabilistic Quantum Logic Operations Using Polarizing Beam Splitters
• Efficient engineering of multi-atom entanglement through single-photon detections
• Robust long-distance entanglement and a loophole-free Bell test with ions and photons
• Fault-tolerant Quantum Communication with Minimal Physical Requirements
• Experimental realization of Dicke states of up to six qubits for multiparty quantum networking
• Hybrid quantum repeater using bright coherent light
• Experimental entanglement of a six-photon symmetric Dicke state
• Efficient routing of single photons by one atom and a microtoroidal cavity
• Experimental Observation of Four-Photon Entangled Dicke State with High Fidelity
• Robust creation of entanglement between ions in spatially separate cavities
• Quantum information processing with a single photon by input-output process regarding low-Q cavities
• Charge detection enables free-electron quantum computation
• Generation of Atomic Cluster States through the Cavity Input-Output Process
• Hybrid quantum repeater based on dispersive CQED interactions between matter qubits and bright coherent light
• Nano Positioning of Single Atoms in a Micro Cavity
• Deterministic loading of individual atoms to a high-finesse optical cavity
• Family of Zeilinger-Horne-Greenberger "W" states lead to stronger nonclassicality than family of Greenberger-Horne-Zeilinger "GHZ" states
• Universal quantum computation in deocoherence-free subspace with neutral atoms
• An elementary optical gate for expanding entanglement web
• The efficiencies of generating cluster states with weak non-linearities
• The Photonic Module: an on-demand resource for photonic entanglement
• Tunable joint measurements in the dispersive regime of cavity QED
• Parity meter for charge qubits: an efficient quantum entangler
• Unified criterion for security of secret sharing in terms of violation of Bell inequality
• Entangling spins by measuring charge: a parity-gate toolbox
• Scalable quantum information processing with atomic ensembles and flying photons
• Multi-qubit entanglement engineering via projective measurements
• Generalized parity measurements
• Scalable quantum search using trapped ions
• All-Optical Measurement Based QIP in Quantum Dots

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