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’s 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.
Experimental characterization of the energetics of quantum logic gates / Cimini, V.; Gherardini, S.; Barbieri, M.; Gianani, I.; Sbroscia, M.; Buffoni, L.; Paternostro, M.; Caruso, F.. - In: NPJ QUANTUM INFORMATION. - ISSN 2056-6387. - 6:1(2020), pp. 1-8. [10.1038/s41534-020-00325-7]
Experimental characterization of the energetics of quantum logic gates
Cimini V.;Barbieri M.
;Gianani I.;Sbroscia M.;
2020
Abstract
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’s 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.| File | Dimensione | Formato | |
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