Hybrid quantum logic and a test of Bell’s inequality using two different atomic isotopes

  title={Hybrid quantum logic and a test of Bell’s inequality using two different atomic isotopes},
  author={C. J. Ballance and V M Sch{\"a}fer and J. P. Home and D. J. Szwer and S. C. Webster and D. T. C. Allcock and Norbert Matthias Linke and T. Patrick Harty and Diana Prado Lopes Aude Craik and D. N. Stacey and Andrew M. Steane and D. M. Lucas},
Entanglement is one of the most fundamental properties of quantum mechanics, and is the key resource for quantum information processing (QIP). Bipartite entangled states of identical particles have been generated and studied in several experiments, and post-selected or heralded entangled states involving pairs of photons, single photons and single atoms, or different nuclei in the solid state, have also been produced. Here we use a deterministic quantum logic gate to generate a ‘hybrid… 

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Single-site Rydberg addressing in 3D atomic arrays for quantum computing with neutral atoms

  • Xiao-Feng Shi
  • Physics
    Journal of Physics B: Atomic, Molecular and Optical Physics
  • 2020
Neutral atom arrays are particularly promising for large-scale quantum computing because it is possible to prepare large-scale qubit arrays. An unsolved issue is how to selectively excite one qubit



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The generation of entanglement is a fundamental resource for quantum technology, and trapped ions are one of the most promising systems for storage and manipulation of quantum information. Here we

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A universal geometric π-phase gate between two beryllium ion-qubits is demonstrated, based on coherent displacements induced by an optical dipole force, which makes it attractive for a multiplexed trap architecture that would enable scaling to large numbers of ions.

Multi-element logic gates for trapped-ion qubits

An entangling quantum gate between ions of different elements which can serve as an important building block of QIP, quantum networking, precision spectroscopy, metrology, and quantum simulation is demonstrated.

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Some experimental issues in the proposal for trappedion quantum computation by J. I. Cirac and P. Zoller (University of Innsbruck) are discussed and several possible decoherence mechanisms are examined.

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The latest progress and prospects in the scaling of trapped ions to hundreds or thousands of qubits and beyond are reviewed, with the promise of advanced architectures and new technologies, such as microfabricated ion traps and integrated photonics.