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Trapped Ion Quantum Computing

High-power collective charging of a solid-state quantum battery

arXiv
Authors: Dario Ferraro, Michele Campisi, Gian Marcello Andolina, Vittorio Pellegrini, Marco Polini

Year

2017

Paper ID

44593

Status

Preprint

Abstract Read

~2 min

Abstract Words

123

Citations

N/A

Abstract

Quantum information theorems state that it is possible to exploit collective quantum resources to greatly enhance the charging power of quantum batteries (QBs) made of many identical elementary units. We here present and solve a model of a QB that can be engineered in solid-state architectures. It consists of N two-level systems coupled to a single photonic mode in a cavity. We contrast this collective model ("Dicke QB"), whereby entanglement is genuinely created by the common photonic mode, to the one in which each two-level system is coupled to its own separate cavity mode ("Rabi QB"). By employing exact diagonalization, we demonstrate the emergence of a quantum advantage in the charging power of Dicke QBs, which scales like sqrt{N} for Ngg 1.

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  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
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  • Quantum information theorems state that it is possible to exploit collective quantum resources to greatly enhance the charging power of quantum batteries (QBs) made of many...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1707.04930 [2] arXiv https://arxiv.org/abs/1707.04930 [3] Publisher https://arxiv.org/abs/1707.04930

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