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.
Cimini, V., Gherardini, S., Barbieri, M., Gianani, I., Sbroscia, M., Buffoni, L., et al. (2020). Experimental characterization of the energetics of quantum logic gates. NPJ QUANTUM INFORMATION, 6(1) [10.1038/s41534-020-00325-7].
Experimental characterization of the energetics of quantum logic gates
Cimini V.;Barbieri M.;Gianani I.;Sbroscia M.;
2020-01-01
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
