Fast nuclear-spin entangling gates compatible with large-scale atomic
arrays
- URL: http://arxiv.org/abs/2312.06327v1
- Date: Mon, 11 Dec 2023 12:21:08 GMT
- Title: Fast nuclear-spin entangling gates compatible with large-scale atomic
arrays
- Authors: Xiao-Feng Shi and Yan Lu
- Abstract summary: Nuclear-spin entangling gates with divalent atoms can be executed by one global laser pulse.
Nuclear-spin entangling gates with divalent atoms can be executed by one global laser pulse.
- Score: 15.929891047245482
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Nuclear-spin entangling gates with divalent atoms can be executed by one
global laser pulse when $\Delta_{\text{Z}}<\Omega$, where $\Delta_{\text{Z}}$
is the Zeeman-splitting-dominated frequency difference for the clock-Rydberg
transitions of the two nuclear-spin qubit states and $\Omega$ is the maximal
Rabi frequency. Concerning the sensitivity of Rydberg-state energy to magnetic
fluctuation, the gate is compatible with large-scale atomic arrays for weaker
magnetic field is suitable for ensuring uniform field in a large qubit array.
The gate can have a high fidelity because the relaxation and dephasing of
Rydberg states, which limit the fidelity and grow with $1/\Omega$, can be
mitigated with easily attainable large $\Omega$.
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