Individual-ion addressing with microwave field gradients.

  title={Individual-ion addressing with microwave field gradients.},
  author={Ulrich Warring and Christian Ospelkaus and Yves Colombe and R J{\"o}rdens and Dietrich Leibfried and David J. Wineland},
  journal={Physical review letters},
  volume={110 17},
Individual-qubit addressing is a prerequisite for many instances of quantum information processing. We demonstrate this capability on trapped-ion qubits with microwave near fields delivered by electrode structures integrated into a microfabricated surface-electrode trap. We describe four approaches that may be used in quantum information experiments with hyperfine levels as qubits. We implement individual control on two 25Mg+ ions separated by 4.3  μm and find spin-flip crosstalk errors on the… 

Figures and Tables from this paper

Near-field microwave addressing of trapped-ion qubits for scalable quantum computation

This thesis reports high-fidelity near-field spatial microwave addressing of long-lived 43 Ca + "atomic clock" qubits performed in a two-zone single-layer surface-electrode ion trap. Addressing is

Single-ion addressing via trap potential modulation in global optical fields

To date, individual addressing of ion qubits has relied primarily on local Rabi or transition frequency differences between ions created via electromagnetic field spatial gradients or via ion

Transformed composite sequences for improved qubit addressing

family. Further, we demonstrate the effectiveness of these sequences in an experiment with 40 Ca + ion qubits in a surface-electrode trap. We consider a register of N identical spatially separated

High-fidelity rf/microwave-based universal control of trapped ion qubits

Universal control of multiple qubits-the ability to entangle qubits and to perform arbitrary individual qubit operations-is a fundamental resource for quantum computation, simulation, and networking.

Microwave control electrodes for scalable, parallel, single-qubit operations in a surface-electrode ion trap

We propose a surface ion trap design incorporating microwave control electrodes for near-field single-qubit control. The electrodes are arranged so as to provide arbitrary frequency, amplitude and

Integrated optical addressing of an ion qubit.

Owing to the scalability of the planar fabrication technique employed, together with the tight focusing and stable alignment afforded by the integration of the optics within the trap chip, this approach presents a path to creating the optical systems required for large-scale trapped-ion quantum information processing.

Universal gate-set for trapped-ion qubits using a narrow linewidth diode laser

We report on the implementation of a high fidelity universal gate-set on optical qubits based on trapped 88Sr+ ions for the purpose of quantum information processing. All coherent operations were

Spatially uniform single-qubit gate operations with near-field microwaves and composite pulse compensation

We present a microfabricated surface-electrode ion trap with a pair of integrated waveguides that generate a standing microwave field resonant with the 171Yb+ hyperfine qubit. The waveguides are

Towards microwave based ion trap quantum technology

Scalability is a challenging yet key aspect required for large scale quantum computing and simulation using ions trapped in radio-frequency (rf) Paul traps. In this thesis 171Yb+ ions are used to

Ju l 2 01 6 Integrated optical addressing of an ion qubit

The long coherence times and strong Coulomb interactions afforded by trapped ion qubits have enabled realizations of the necessary primitives for quantum information processing (QIP), and indeed the



Nature (London) 476

  • 181 (2011); U. Warring, C. Ospelkaus, Y. Colombe, K. R. Brown, J.M. Amini, M. Carsjens, D. Leibfried, and D. J. Wineland, Phys. Rev. A 87, 013437
  • 2013

I and J

Nature 409

  • 791
  • 2001

Here F is the total angular momentum and mF is the projection of the angular momentum onto the magnetic field axis

    New J

    • Phys. 12, 033031 (2010); D. L. Moehring, C. Highstrete, D. Stick, K. M. Fortier, R. Haltli, C. Tigges, and M. G. Blain, ibid. 13, 075018 (2011); S. Doret, J. M. Amini, K. Wright, C. Volin, T. Killian, A. Ozakin, D. Denison, H. Hayden, C.-S. Pai, R. E. Slusher, and A. W. Harter, ibid. 14, 073012
    • 2012

    The coherence time is defined as the Ramsey interval TR at which the fringe contrast decays by a factor e −1

      Quantum Inf

      • Comput. 2, 257 (2002); W. K. Hensinger, S. Olmschenk, D. Stick, D. Hucul, M. Yeo, M. Acton, L. Deslauriers, C. Monroe, and J. Rabchuk, Appl. Phys. Lett. 88, 034101 (2006); S. A. Schulz, U. Poschinger, F. Ziesel, and F. Schmidt-Kaler, New J. Phys. 10, 045007 (2008); D. Hanneke, J. P. Home, J. D. Jost
      • 2010