activity
20032010
most citedHigh-fidelity readout of trapped-ion qubits

335 citations · 953 across the 8 of their papers we have counts for

collaborators

8 papers

quant-ph2010★ 53 cited

Keeping a Single Qubit Alive by Experimental Dynamic Decoupling

David J. Szwer, Simon C. Webster, Andrew M. Steane +1

We demonstrate the use of dynamic decoupling techniques to extend the coherence time of a single memory qubit by nearly two orders of magnitude. By extending the Hahn spin-echo tec…

quant-ph2009★ 72 cited

Implementation of a symmetric surface electrode ion trap with field compensation using a modulated Raman effect

D. T. C. Allcock, J. A. Sherman, D. N. Stacey +8

We describe the fabrication and characterization of a new surface-electrode Paul ion trap designed for experiments in scalable quantum information processing with Ca+. A notable fe…

quant-ph2009★ 62 cited

Scalable simultaneous multi-qubit readout with 99.99% single-shot fidelity

A. H. Burrell, D. J. Szwer, S. C. Webster +1

We describe single-shot readout of a trapped-ion multi-qubit register using space and time-resolved camera detection. For a single qubit we measure 0.9(3)x10^{-4} readout error in…

quant-ph2008★ 335 cited

High-fidelity readout of trapped-ion qubits

A. Myerson, D. Szwer, S. Webster +7

We demonstrate single-shot qubit readout with fidelity sufficient for fault-tolerant quantum computation, for two types of qubit stored in single trapped calcium ions. For an optic…

quant-ph2006★ 122 cited

Polarization-controlled single photons

T. Wilk, S. C. Webster, H. P. Specht +2

Vacuum-stimulated Raman transitions are driven between two magnetic substates of a rubidium-87 atom strongly coupled to an optical cavity. A magnetic field lifts the degeneracy of…

quant-ph2006★ 57 cited

Long-lived mesoscopic entanglement outside the Lamb-Dicke regime

M. J. McDonnell, J. P. Home, D. M. Lucas +7

We create entangled states of the spin and motion of a single Ca ion in a linear ion trap. The motional part consists of coherent states of large separation and long coh…