Versatile laser-free trapped-ion entangling gates
Versatile laser-free trapped-ion entangling gates
复制标题
多功能无激光俘获离子纠缠门
DOI:
10.1088/1367-2630/ab0be5
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发表时间:
2018
影响因子:
3.3
通讯作者:
S. Libby
中科院分区:
文献类型:
--
作者:
R. T. Sutherland;R. Srinivas;R. Srinivas;S. Burd;S. Burd;D. Leibfried;A. Wilson;D. Wineland;D. Wineland;D. Wineland;D. Allcock;D. Allcock;D. Allcock;D. Slichter;S. Libby
We present a general theory for laser-free entangling gates with trapped-ion hyperfine qubits, using either static or oscillating magnetic-field gradients combined with a pair of uniform microwave fields symmetrically detuned about the qubit frequency. By transforming into a ‘bichromatic’ interaction picture, we show that either σ ˆ ϕ ⨂ σ ˆ ϕ or σ ˆ z ⨂ σ ˆ z geometric phase gates can be performed. The gate basis is determined by selecting the microwave detuning. The driving parameters can be tuned to provide intrinsic dynamical decoupling from qubit frequency fluctuations. The σ ˆ z ⨂ σ ˆ z gates can be implemented in a novel manner which eases experimental constraints. We present numerical simulations of gate fidelities assuming realistic parameters.
影响因子:
3.3
作者:
S. Wölk;Ch. Wunderlich
通讯作者:
Ch. Wunderlich
影响因子:
2.9
作者:
Bermudez, A.;Schmidt, P. O.;Retzker, A.
通讯作者:
Retzker, A.
影响因子:
8.6
作者:
Khromova, A.;Piltz, Ch.;Wunderlich, Ch.
通讯作者:
Wunderlich, Ch.