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Trapped Ion Quantum Computing Quantum Simulation

Analysis of a controlled phase gate using circular Rydberg states

arXiv
Authors: T. Xia, X. L. Zhang, M. Saffman

Year

2013

Paper ID

31166

Status

Preprint

Abstract Read

~2 min

Abstract Words

113

Citations

N/A

Abstract

We propose and analyze the implementation of a two qubit quantum gate using circular Rydberg states with maximum orbital angular momentum. The intrinsic quantum gate error is limited by the finite Rydberg lifetime and finite Rydberg blockade shift. Circular states have much longer radiative lifetimes than low orbital angular momentum states and are therefore candidates for high fidelity gate operations. We analyze the dipole-dipole interaction of two circular state Rydberg atoms and present numerical simulations of quantum process tomography to find the intrinsic fidelity of a Rydberg blockade controlled phase gate. Our analysis shows that the intrinsic gate error can be less than 9 times10-6 for circular Cs atoms in a cryogenic environment.

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  • This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
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  • We propose and analyze the implementation of a two qubit quantum gate using circular Rydberg states with maximum orbital angular momentum.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1310.8012 [2] arXiv https://arxiv.org/abs/1310.8012 [3] Publisher https://arxiv.org/abs/1310.8012

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