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pro vyhledávání: '"Andersen, Christian"'
Andreev (or superconducting) spin qubits (ASQs) have recently emerged as a promising qubit platform that combines superconducting circuits with semiconductor spin degrees of freedom. While recent experiments have successfully coupled two ASQs, how to
Externí odkaz:
http://arxiv.org/abs/2405.09988
Autor:
Splitthoff, Lukas Johannes, Belo, Miguel Carrera, Jin, Guliuxin, Li, Yu, Greplova, Eliska, Andersen, Christian Kraglund
Metamaterials engineered to host topological states of matter in controllable quantum systems hold promise for the advancement of quantum simulations and quantum computing technologies. In this context, the Su-Schrieffer-Heeger (SSH) model has gained
Externí odkaz:
http://arxiv.org/abs/2404.07371
Publikováno v:
Physical Review Applied, 22(1), 014079 (2024)
Much attention has focused on the transmon architecture for large-scale superconducting quantum devices, however, the fluxonium qubit has emerged as a possible successor. With a shunting inductor in parallel to a Josephson junction, the fluxonium off
Externí odkaz:
http://arxiv.org/abs/2309.17286
Autor:
Splitthoff, Lukas Johannes, Wesdorp, Jaap Joachim, Pita-Vidal, Marta, Bargerbos, Arno, Andersen, Christian Kraglund
Publikováno v:
Phys. Rev. Applied 21, 014052 (2024)
Superconducting parametric amplifiers play a crucial role in the preparation and readout of quantum states at microwave frequencies, enabling high-fidelity measurements of superconducting qubits. Most existing implementations of these amplifiers rely
Externí odkaz:
http://arxiv.org/abs/2308.06989
Autor:
Pita-Vidal, Marta, Wesdorp, Jaap J., Splitthoff, Lukas J., Bargerbos, Arno, Liu, Yu, Kouwenhoven, Leo P., Andersen, Christian Kraglund
Superconducting (or Andreev) spin qubits have recently emerged as an alternative qubit platform with realizations in semiconductor-superconductor hybrid nanowires. In these qubits, the spin degree of freedom is intrinsically coupled to the supercurre
Externí odkaz:
http://arxiv.org/abs/2307.15654
Autor:
Pita-Vidal, Marta, Bargerbos, Arno, Žitko, Rok, Splitthoff, Lukas J., Grünhaupt, Lukas, Wesdorp, Jaap J., Liu, Yu, Kouwenhoven, Leo P., Aguado, Ramón, van Heck, Bernard, Kou, Angela, Andersen, Christian Kraglund
Publikováno v:
Nature Physics 19, 1110-1115 (2023)
Spin qubits in semiconductors are currently one of the most promising architectures for quantum computing. However, they face challenges in realizing multi-qubit interactions over extended distances. Superconducting spin qubits provide a promising al
Externí odkaz:
http://arxiv.org/abs/2208.10094
Autor:
Bargerbos, Arno, Pita-Vidal, Marta, Žitko, Rok, Splitthoff, Lukas J., Grünhaupt, Lukas, Wesdorp, Jaap J., Liu, Yu, Kouwenhoven, Leo P., Aguado, Ramón, Andersen, Christian Kraglund, Kou, Angela, van Heck, Bernard
Publikováno v:
Phys. Rev. Lett. 131, 097001 (2023)
We use a hybrid superconductor-semiconductor transmon device to perform spectroscopy of a quantum dot Josephson junction tuned to be in a spin-1/2 ground state with an unpaired quasiparticle. Due to spin-orbit coupling, we resolve two flux-sensitive
Externí odkaz:
http://arxiv.org/abs/2208.09314
Autor:
Bargerbos, Arno, Splitthoff, Lukas Johannes, Pita-Vidal, Marta, Wesdorp, Jaap J., Liu, Yu, Krogstrup, Peter, Kouwenhoven, Leo P., Andersen, Christian Kraglund, Grünhaupt, Lukas
Quantum error correction will be an essential ingredient in realizing fault-tolerant quantum computing. However, most correction schemes rely on the assumption that errors are sufficiently uncorrelated in space and time. In superconducting qubits thi
Externí odkaz:
http://arxiv.org/abs/2207.12754