Experimental characterization of the energetics of quantum logic gates
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 performan...
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| Veröffentlicht in: | npj quantum information 2020-12, Vol.6 (1), Article 96 |
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| creator | Cimini, V. Gherardini, S. Barbieri, M. Gianani, I. Sbroscia, M. Buffoni, L. Paternostro, M. Caruso, F. |
| description | 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. |
| doi_str_mv | 10.1038/s41534-020-00325-7 |
| format | Article |
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| subjects | 639/624/400/482 639/766/259 639/766/483/481 Classical and Quantum Gravitation Entropy Physics Physics and Astronomy Quantum Computing Quantum Field Theories Quantum Information Technology Quantum Physics Relativity Theory Spintronics String Theory |
| title | Experimental characterization of the energetics of quantum logic gates |
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