Zobrazeno 1 - 10
of 341
pro vyhledávání: '"Leo P. Kouwenhoven"'
Autor:
Francesco Zatelli, David van Driel, Di Xu, Guanzhong Wang, Chun-Xiao Liu, Alberto Bordin, Bart Roovers, Grzegorz P. Mazur, Nick van Loo, Jan C. Wolff, A. Mert Bozkurt, Ghada Badawy, Sasa Gazibegovic, Erik P. A. M. Bakkers, Michael Wimmer, Leo P. Kouwenhoven, Tom Dvir
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract Kitaev chains in quantum dot-superconductor arrays are a promising platform for the realization of topological superconductivity. As recently demonstrated, even a two-site chain can host Majorana zero modes known as “poor man’s Majorana
Externí odkaz:
https://doaj.org/article/372e7eb66ceb40c39e70739da3e6ae1c
Autor:
David van Driel, Guanzhong Wang, Alberto Bordin, Nick van Loo, Francesco Zatelli, Grzegorz P. Mazur, Di Xu, Sasa Gazibegovic, Ghada Badawy, Erik P. A. M. Bakkers, Leo P. Kouwenhoven, Tom Dvir
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
Abstract Semiconductor nanowires coupled to superconductors can host Andreev bound states with distinct spin and parity, including a spin-zero state with an even number of electrons and a spin-1/2 state with odd-parity. Considering the difference in
Externí odkaz:
https://doaj.org/article/6aaffd8bfd704592b5c5ad7912d76ba0
Autor:
Vukan Levajac, Ji-Yin Wang, Cristina Sfiligoj, Mathilde Lemang, Jan Cornelis Wolff, Alberto Bordin, Ghada Badawy, Sasa Gazibegovic, Erik P. A. M. Bakkers, Leo P. Kouwenhoven
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract Tunneling spectroscopy is widely used to examine the subgap spectra in semiconductor-superconductor nanostructures when searching for Majorana zero modes (MZMs). Typically, semiconductor sections controlled by local gates at the ends of hybr
Externí odkaz:
https://doaj.org/article/5720506569854a03aecc6897d06e9bca
Autor:
Nick van Loo, Grzegorz P. Mazur, Tom Dvir, Guanzhong Wang, Robin C. Dekker, Ji-Yin Wang, Mathilde Lemang, Cristina Sfiligoj, Alberto Bordin, David van Driel, Ghada Badawy, Sasa Gazibegovic, Erik P. A. M. Bakkers, Leo P. Kouwenhoven
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
Abstract The proximity effect in semiconductor-superconductor nanowires is expected to generate an induced gap in the semiconductor. The magnitude of this induced gap, together with the semiconductor properties like spin-orbit coupling and g-factor,
Externí odkaz:
https://doaj.org/article/56ef2d78dfad4833824f630fe741070b
Autor:
Alberto Bordin, Guanzhong Wang, Chun-Xiao Liu, Sebastiaan L. D. ten Haaf, Nick van Loo, Grzegorz P. Mazur, Di Xu, David van Driel, Francesco Zatelli, Sasa Gazibegovic, Ghada Badawy, Erik P. A. M. Bakkers, Michael Wimmer, Leo P. Kouwenhoven, Tom Dvir
Publikováno v:
Physical Review X, Vol 13, Iss 3, p 031031 (2023)
A short superconducting segment can couple attached quantum dots via elastic cotunneling (ECT) and crossed Andreev reflection (CAR). Such coupled quantum dots can host Majorana bound states provided that the ratio between CAR and ECT can be controlle
Externí odkaz:
https://doaj.org/article/10c8587e50d74fbf9f30266adbc103da
Autor:
Sebastian Heedt, Marina Quintero-Pérez, Francesco Borsoi, Alexandra Fursina, Nick van Loo, Grzegorz P. Mazur, Michał P. Nowak, Mark Ammerlaan, Kongyi Li, Svetlana Korneychuk, Jie Shen, May An Y. van de Poll, Ghada Badawy, Sasa Gazibegovic, Nick de Jong, Pavel Aseev, Kevin van Hoogdalem, Erik P. A. M. Bakkers, Leo P. Kouwenhoven
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Advanced fabrication techniques enable a wide range of quantum devices, such as the realization of a topological qubit. Here, the authors introduce an on-chip fabrication technique based on shadow walls to implement topological qubits in an InSb nano
Externí odkaz:
https://doaj.org/article/4342ea1879844c8391fb3d3c53b33006
Autor:
Francesco Borsoi, Kun Zuo, Sasa Gazibegovic, Roy L. M. Op het Veld, Erik P. A. M. Bakkers, Leo P. Kouwenhoven, Sebastian Heedt
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-6 (2020)
Measuring the transmission phase of a quantum dot is crucial for the read-out of future topological qubits based on nanowire networks but has not been established yet. Here, the authors demonstrate interferometric read-out of the transmission phase i
Externí odkaz:
https://doaj.org/article/33f830a109544da1b606dfe34e03f756
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
The pursuit of topological qubits based on Majorana zero mode within nanowires is highly desired. Here, Zhang et al. summarize the current achievements and discuss the opportunities and challenges of several key next-step experiments.
Externí odkaz:
https://doaj.org/article/1af83f070f2c4b4a8903b40dc6e2871e
Autor:
Dominique Laroche, Daniël Bouman, David J. van Woerkom, Alex Proutski, Chaitanya Murthy, Dmitry I. Pikulin, Chetan Nayak, Ruben J. J. van Gulik, Jesper Nygård, Peter Krogstrup, Leo P. Kouwenhoven, Attila Geresdi
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
The interplay of induced superconductivity and magnetic fields should drive InAs nanowires into a topological superconducting phase. Laroche et al. use the microwave radiation emitted by an InAs nanowire Josephson junction to observe the 4π-periodic
Externí odkaz:
https://doaj.org/article/6eaf156403fe4baf99d8b3cabcb8140f
Autor:
Arno Bargerbos, Marta Pita-Vidal, Rok Žitko, Jesús Ávila, Lukas J. Splitthoff, Lukas Grünhaupt, Jaap J. Wesdorp, Christian K. Andersen, Yu Liu, Leo P. Kouwenhoven, Ramón Aguado, Angela Kou, Bernard van Heck
Publikováno v:
PRX Quantum, Vol 3, Iss 3, p 030311 (2022)
We realize a hybrid superconductor-semiconductor transmon device in which the Josephson effect is controlled by a gate-defined quantum dot in an InAs-Al nanowire. Microwave spectroscopy of the transition spectrum of the transmon allows us to probe th
Externí odkaz:
https://doaj.org/article/49e305e5622b4fc7b78a917b111a83ee