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Berlin 2024 – wissenschaftliches Programm

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QI: Fachverband Quanteninformation

QI 26: Superconducting Electronics: Qubits II (joint session TT/QI)

QI 26.5: Vortrag

Donnerstag, 21. März 2024, 16:00–16:15, H 2053

Fermionic quantum computation with Cooper pair splittersKostas Vilkelis1, 2, •Antonio Manesco2, Juan Daniel Torres Luna1,2, Sebastian Miles1,2, Michael Wimmer1,2, and Anton Akhmerov21Qutech, Delft University of Technology, Delft 2600 GA, The Netherlands — 2Kavli Institute of Nanoscience, Delft University of Technology, Delft 2600 GA, The Netherlands

We propose a practical implementation of a universal quantum computer that uses local fermionic modes (LFM) rather than qubits. Our design consists of quantum dots tunnel coupled by a hybrid superconducting island together with a tunable capacitive coupling between the dots. We show that coherent control of Cooper pair splitting, elastic cotunneling, and Coulomb interactions allows us to implement the universal set of quantum gates defined by Bravyi and Kitaev. Finally, we discuss possible limitations of the device and list necessary experimental efforts to overcome them.

Keywords: local Fermionic modes; cooper pair splitter; quantum computation

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