Correcting noisy quantum gates with shortcuts to adiabaticity

• URL: http://arxiv.org/abs/2505.20000v1
• Date: Mon, 26 May 2025 13:51:46 GMT
• Title: Correcting noisy quantum gates with shortcuts to adiabaticity
• Authors: Moallison F. Cavalcante, Bariş Çakmak, Marcus V. S. Bonança, Sebastian Deffner,
• Abstract summary: Unitary quantum gates constitute the building blocks of Quantum Computing in the circuit paradigm.<n>In practice, quantum gates have to be implemented in finite-time, hence non-adiabatic and external noise effects debilitate gate fidelities.<n>Counterdiabatic control can restore gate performance with near perfect fidelities even in open quantum systems subject to decoherence.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: 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 non-adiabatic 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.

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