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Trapped Ion Quantum Computing

Fully selective charging of a quantum battery by a purely quantum charger

arXiv
Authors: Yohan Vianna, Marcelo F. Santos

Year

2026

Paper ID

30599

Status

Preprint

Abstract Read

~2 min

Abstract Words

132

Citations

N/A

Abstract

In this paper we discuss a protocol for charging a two-level quantum battery using a bipartite charger composed of two quantum harmonic oscillators. As one of its features, it allows us to fully charge the battery and is universally optimal in the regime of a single excitation added as energy input. We also make use of a selective interaction to extend the protocol for a different class of quantum states and show that, in this case, the presence of quantum coherence can be harnessed as energetic resource to charge multiple similar batteries. Among these, we also explore symmetries of the derived effective dynamics to quickly discuss how the same protocol can be adapted to the task of active state resetting, a task which is particularly useful in the quantum computation area.

Why This Paper Matters

  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2026 reference point for readers tracking recent quantum research.
  • In this paper we discuss a protocol for charging a two-level quantum battery using a bipartite charger composed of two quantum harmonic oscillators.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2603.18181 [2] arXiv https://arxiv.org/abs/2603.18181 [3] Publisher https://arxiv.org/abs/2603.18181

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