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Experimental analysis of energy transfers between a quantum emitter and light fields

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arxiv 2202.01109 v3 pith:EFEQY3QT submitted 2022-02-02 quant-ph

I. Maillette de Buy Wenniger , S. E. Thomas , M. Maffei , S. C. Wein , M. Pont , N. Belabas , S. Prasad , A. Harouri
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A. Lemaître I. Sagnes N. Somaschi A. Auffèves P. Senellart
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keywords energyfieldquantumemittertransfersunitaryemittedexperimental
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Energy transfer between quantum systems can either be achieved through an effective unitary interaction or through the generation of entanglement. This observation defines two types of energy exchange: unitary and correlation energy. Here we propose and implement experimental protocols to access these energy transfers in interactions between a quantum emitter and light fields. Upon spontaneous emission, we measure the unitary energy transfer from the emitter to the optical field and show that it never exceeds half of the total energy and is reduced when introducing decoherence. We then study the interference of the emitted field and a laser field at a beam splitter and show that the energy transfers quantitatively depend on the quantum purity of the emitted field.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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    For a two-spin Ising quantum battery with bounded transverse control, the energy-optimal fast charging protocol is a bang-singular-bang pulse sequence, with durations given by derived transcendental equations.

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  3. Constructive impact of Wannier-Stark field on environment-boosted quantum batteries

    quant-ph 2025-01 conditional novelty 5.0 of 10

    A Wannier-Stark field in the charger increases maximum power of Hubbard-model quantum batteries above a threshold, and can make bosonic batteries beat fermionic ones.

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