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Trapped Ion Quantum Computing

Ultrafast Mapping of Coherent Dynamics and Density Matrix Reconstruction in Terahertz-Assisted Laser Field

arXiv
Authors: Yizhu Zhang, Tian-Min Yan, Y. H. Jiang

Year

2017

Paper ID

25038

Status

Preprint

Abstract Read

~2 min

Abstract Words

85

Citations

N/A

Abstract

A time-resolved spectroscopic protocol exploiting terahertz-assisted photoionization is proposed to reconstruct transient density matrix. Population and coherence elements are effectively mapped onto spectrally separated peaks in photoionization spectra. The beatings of coherence dynamics can be temporally resolved beyond the pulse duration, and the relative phase between involved states is directly readable from the oscillatory spectral distribution. As demonstrated by a photo-excited multilevel open quantum system, the method shows potential applications for sub-femtosecond time-resolved measurements of coherent dynamics with free electron lasers and tabletop laser fields.

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  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
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  • A time-resolved spectroscopic protocol exploiting terahertz-assisted photoionization is proposed to reconstruct transient density matrix.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1711.06417 [2] arXiv https://arxiv.org/abs/1711.06417 [3] Publisher https://arxiv.org/abs/1711.06417

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