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arXiv 2001.11924quant-ph
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Experimental characterization of the energetics of quantum logic gates

Valeria Cimini, Stefano Gherardini, Marco Barbieri, Ilaria Gianani, Marco Sbroscia, Lorenzo Buffoni, Mauro Paternostro, Filippo Caruso

英文摘要:

We characterize the energetic footprint of a two-qubit quantum gate from the perspective of non-equilibrium quantum thermodynamics. We experimentally reconstruct the statistics of energy and entropy fluctuations following the implementation of a controlled-unitary gate, linking them to the performance of the gate itself and the phenomenology of Landauer principle at the single-quantum level. Our work thus addresses the energetic cost of operating quantum circuits, a problem that is crucial for the grounding of the upcoming quantum technologies.

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