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Shortcuts to Adiabaticity Strategies in Quantum-Dot Chains and other Nanometric Systems: Towards Efficient Quantum Computing Applications

Thursday 19, 10:00

María E. Rus
Instituto de Modelado e Innovación Tecnológia (CONICET) and Universidad Nacional del Nordeste, Corrientes, Argentina

Quantum computation is a prominent area of modern physics, with the potential to revolutionize problem-solving across numerous fields of knowledge by leveraging its ability to perform operations at exponentially faster rates than classical computers. However, developing physical systems that are both practical and efficient for building these quantum devices remains a significant challenge for the scientific and engineering communities. To address this, Shortcuts to Adiabaticity (STA) techniques have been developed to optimize the control parameters of quantum systems and guide their evolution as desired. In this talk, we will explore the application of STA strategies for electronic transport in a semiconductor quantum-dot chain driven by a time-dependent electric field. We will assess the robustness of our protocol by taking into account spin-orbit interactions and other systematic errors arising from fabrication defects. Then, we will introduce a geometric quantum gate model based on the evolution of a Hamiltonian that is adaptable to various quantum systems, and where STA techniques are employed to design high-fidelity and fast single-qubit gates.