Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Masaya Kataoka"'
Publikováno v:
New Journal of Physics, Vol 22, Iss 10, p 103031 (2020)
Due to their high energy, hot electrons in quantum Hall edge (QHE) states can be considered as single particles that have the potential to be used for quantum optics-like experiments. Unlike photons, however, electrons typically undergo scattering pr
Externí odkaz:
https://doaj.org/article/d568e51f0f1949318f6efe2c08af8fbb
Autor:
Masaya Kataoka
Publikováno v:
Nature. 608:40-41
Autor:
Alessandro Rossi, Masaya Kataoka, Giordano Scappucci, Menno Veldhorst, N.W. Hendrickx, Amir Sammak
Publikováno v:
Journal of Physics D: Applied Physics, 54(43)
Single-charge pumps are the main candidates for quantum-based standards of the unit ampere because they can generate accurate and quantized electric currents. In order to approach the metrological requirements in terms of both accuracy and speed of o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a83a83efb9e3ed3d303dc434efdc7ea
https://strathprints.strath.ac.uk/77296/7/Rossi_etal_JPD_AP_2021_Single_hole_pump_in_germanium.pdf
https://strathprints.strath.ac.uk/77296/7/Rossi_etal_JPD_AP_2021_Single_hole_pump_in_germanium.pdf
Autor:
Masaya Kataoka, Heung-Sun Sim, Sungguen Ryu, Clive Emary, Lewis A. Clark, Clarissa J. Barratt
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
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We consider theoretically an electronic Mach-Zehnder interferometer constructed from quantum Hall edge channels and quantum point contacts, fed with single electrons from a dynamic quantum dot source. By considering the energy dependence of the edge-
Autor:
Masaya Kataoka
Publikováno v:
Semiconductor Nanodevices ISBN: 9780128220832
In this chapter, various types of single-electron sources are introduced. We review their device operation mechanisms, limitations in operation speed and accuracy and their applications in quantum current standard and electron quantum optics. In the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fa810a77f23f9906a2c02daad73daaf
https://doi.org/10.1016/b978-0-12-822083-2.00012-5
https://doi.org/10.1016/b978-0-12-822083-2.00012-5
Publikováno v:
2020 Conference on Precision Electromagnetic Measurements (CPEM).
We compare an electron pump and an ultrastable low-noise current amplifier (ULCA) as reference current sources for calibrating a high-gain current preamplifier at pA-level currents. Using the electron pump on a quantized current plateau, the current
Autor:
G. A. C. Jones, Gento Yamahata, Akira Fujiwara, Patrick See, Stephen P. Giblin, J. P. Griffiths, Masaya Kataoka, D. A. Ritchie, Ian Farrer
Publikováno v:
2020 Conference on Precision Electromagnetic Measurements (CPEM).
We have directly compared the current from two dissimilar quantized charge pumps each pumping one electron per cycle at 825 MHz. The currents are equal to within roughly 1 part in 106, although a long time constant of unknown origin prevents stronger
Autor:
Pekka Immonen, Gento Yamahata, Stephen P. Giblin, Akira Fujiwara, Máté Jenei, Antti Kemppinen, Masaya Kataoka, Mikko Möttönen, Antti Manninen, Emma Mykkänen
Publikováno v:
Giblin, S P, Mykkänen, E, Kemppinen, A, Immonen, P, Manninen, A, Jenei, M, Möttönen, M, Yamahata, G, Fujiwara, A & Kataoka, M 2020, ' Realisation of a quantum current standard at liquid helium temperature with sub-ppm reproducibility ', Metrologia, vol. 57, no. 2, 025013 . https://doi.org/10.1088/1681-7575/ab72e0
A silicon electron pump operating at the temperature of liquid helium has demonstrated repeatable operation with sub-ppm accuracy. The pump current, approximately 168 pA, is measured by three laboratories, and the measurements agree with the expected
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59163a5d3094d14e8e5ebe29e2383239
Autor:
Ian Farrer, Elina Locane, Masaya Kataoka, Patrick See, J. Griffiths, J. D. Fletcher, N. Johnson, David A. Ritchie, Vyacheslavs Kashcheyevs, Piet W. Brouwer
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
Nature Communications
Nature Communications
A method for characterising the wave-function of freely-propagating particles would provide a useful tool for developing quantum-information technologies with single electronic excitations. Previous continuous-variable quantum tomography techniques d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a98f0f8ae7d2da2994e6eff9af9a1561
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
instname
An advanced understanding of ultrafast coherent electron dynamics is necessary for the application of submicrometre devices under a non-equilibrium drive to quantum technology, including on-demand single-electron sources, electron quantum optics, qub
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e56104242b54e562e4a31cad28c3a271
http://hdl.handle.net/10261/210832
http://hdl.handle.net/10261/210832