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Trapped Ion Quantum Computing

Robust creation of arbitrary-sized Dicke states using a single laser pulse

arXiv
Authors: I. E. Linington, N. V. Vitanov

Year

2007

Paper ID

49281

Status

Preprint

Abstract Read

~2 min

Abstract Words

114

Citations

N/A

Abstract

We propose a novel technique for the creation of maximally entangled symmetric Dicke states in an ion trap using adiabatic passage, which requires only a pair of chirped pulses from a single laser and is applicable to any number of ions and excitations. By utilising a particular factorisation of the Hilbert space for multi-level ladders we show that the problem can be reduced to `bow-tie' configuration energy-level crossings. This technique is naturally robust against fluctuations in the laser intensity and the chirp rate. Even when realistic heating rates are considered, we estimate that the overall fidelity should remain high (e.g. 98% for a ten-ion Dicke state), which represents a significant improvement over traditional approaches.

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  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
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  • We propose a novel technique for the creation of maximally entangled symmetric Dicke states in an ion trap using adiabatic passage, which requires only a pair of chirped pulses...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:0708.3216 [2] arXiv https://arxiv.org/abs/0708.3216 [3] Publisher https://arxiv.org/abs/0708.3216

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