Leo Kouwenhoven (born (1963-12-10)10 December 1963) is a Dutch physicist known for his research on quantum computing.
Kouwenhoven grew up in Pijnacker, a village near Delft, where his parents ran a farm. After losing the admission lottery for veterinary medicine he decided to study physics at Delft University of Technology (TU Delft).[1]
In 1992 he received his PhD cum laude at TU Delft; his promoter was Hans Mooij [de]. In 1999 he became a professor at TU Delft.[1] In 2007 he received the Spinoza Prize, the highest Dutch academic award. In April 2012 his TU Delft research group presented experimental results that provided potential "signatures" of Majorana fermion quasiparticles.[2][3][4] These Majorana quasiparticles would be very stable, and therefore suitable for building a quantum computer.[5]
In 2018 his research group claimed to have proved the definitive existence of Majorana particles in a Nature publication.[6] However, the results could not be reproduced by other scientists, and the article had to be retracted in 2021 due to "insufficient scientific rigour".[7][8][9][10] The researchers had excluded data points that contradicted their claims, with the complete data not supporting their conclusions.[11]
^ abHoeks, Louis (6 March 2016). "'Op de boerderij leerde ik dat wegduiken geen optie is'". Financieele Dagblad.
^Bob Yirka (13 April 2012). "Researchers find possible evidence of Majorana fermions". phys.org. Retrieved 28 May 2024.
^"Nanowetenschappers vinden langgezocht Majorana-deeltje". engineersonline.nl (in Dutch). Retrieved 28 May 2024.
^Mourik, V.; Zuo, K.; Frolov, S. M.; Plissard, S. R.; Bakkers, E. P. a. M.; Kouwenhoven, L. P. (25 May 2012). "Signatures of Majorana Fermions in Hybrid Superconductor-Semiconductor Nanowire Devices". Science. 336 (6084): 1003–1007. arXiv:1204.2792. Bibcode:2012Sci...336.1003M. doi:10.1126/science.1222360. ISSN 0036-8075. PMID 22499805. S2CID 18447180.
^Robert F. Service, Physicists Discover New Type of Particle — Sort Of, ScienceNOW, 12 April 2012
^Zhang, Hao; Liu, Chun-Xiao; Gazibegovic, Sasa; Xu, Di; Logan, John A.; Wang, Guanzhong; van Loo, Nick; Bommer, Jouri D. S.; de Moor, Michiel W. A.; Car, Diana; Op het Veld, Roy L. M. (2018). "RETRACTED ARTICLE: Quantized Majorana conductance". Nature. 556 (7699): 74–79. arXiv:1710.10701. doi:10.1038/nature26142. ISSN 1476-4687. PMID 29590094. S2CID 4613547. (This paper currently has an expression of concern, see doi:10.1038/s41586-020-2252-6, PMID 32405002, Retraction Watch. If this is an intentional citation to a such a paper, please replace {{expression of concern|...}} with {{expression of concern|...|intentional=yes}}.)
^Zhang, Hao; Liu, Chun-Xiao; Gazibegovic, Sasa; Xu, Di; Logan, John A.; Wang, Guanzhong; Van Loo, Nick; Bommer, Jouri D. S.; De Moor, Michiel W. A.; Car, Diana; Op Het Veld, Roy L. M.; Van Veldhoven, Petrus J.; Koelling, Sebastian; Verheijen, Marcel A.; Pendharkar, Mihir; Pennachio, Daniel J.; Shojaei, Borzoyeh; Lee, Joon Sue; Palmstrøm, Chris J.; Bakkers, Erik P. A. M.; Das Sarma, S.; Kouwenhoven, Leo P. (2021). "Retraction Note: Quantized Majorana conductance". Nature. 591 (7851): E30. Bibcode:2021Natur.591E..30Z. doi:10.1038/s41586-021-03373-x. PMID 33686283. S2CID 232159790.
^"Landmark article by QuTech researchers under scrutiny". Landmark article by QuTech researchers under scrutiny | TU Delta (in Dutch). 19 May 2020. Retrieved 8 March 2021.
^Stan van Pelt (23 February 2021). "Hoe jonge onderzoekers het fundament wegsloegen onder de quantumdroom van een Delftse hoogleraar". de Volkskrant (in Dutch). Retrieved 8 March 2021.
^Brouwer, Piet; Ensslin, Klaus; Goldhaber-Gordon, David; Lee, Patrick (2021). "Nature paper 'Quantized Majorana conductance', report from independent experts". Zenodo. doi:10.5281/zenodo.4545812. S2CID 244959752.
^"Microsoft's Big Win in Quantum Computing Was an 'Error' After All". Wired.
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