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Correcting noisy quantum gates with shortcuts to adiabaticity

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Autor(es):
Cavalcante, Moallison F. ; Cakmak, Baris ; Bonanca, Marcus V. S. ; Deffner, Sebastian
Número total de Autores: 4
Tipo de documento: Artigo Científico
Fonte: EPL; v. 152, n. 3, p. 8-pg., 2025-11-01.
Resumo

Unitary quantum gates constitute the building blocks of quantum computing in the circuit paradigm. In this work, we engineer a locally driven two-qubit Hamiltonian whose instantaneous ground-state dynamics generates the controlled-NOT (CNOT) quantum gate. In practice, quantum gates have to be implemented in finite time, hence nonadiabatic and external noise effects debilitate gate fidelities. Here, we show that counterdiabatic control can restore gate performance with near perfect fidelities even in open quantum systems subject to decoherence. Copyright c 2025 EPLA All rights, including for text and data mining, AI training, and similar technologies, are reserved. (AU)

Processo FAPESP: 22/15453-0 - Materiais quânticos correlacionados
Beneficiário:Eduardo Miranda
Modalidade de apoio: Auxílio à Pesquisa - Temático