132 citations · 365 across the 12 of their papers we have counts for
12 papers
Coulomb collisions of hot and cold single electrons in series-coupled silicon single-electron pumps
Gento Yamahata, Nathan Johnson, Akira Fujiwara
Control of the Coulomb interaction between single electrons is vital for realizing quantum information processing using flying electrons and, particularly, for the realization of d…
Precision measurement of an electron pump at 2 GHz
Stephen Giblin, Gento Yamahata, Akira Fujiwara +1
A well-characterised sample of silicon tunable-barrier electron pump has been operated at a frequency of 2 GHz using a custom drive waveform, generating a pump current of 320 pA. P…
Realisation of a quantum current standard at liquid helium temperature with sub-ppm reproducibility
Stephen Giblin, Emma Mykkänen, Antti Kemppinen +7
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 measur…
Derivation of potential profile of a dynamic quantum dot
Nathan Johnson, Gento Yamahata, Akira Fujiwara
We report a method to derive the potential barrier profile shape in a dynamic quantum dot and show the loading statistics, and hence accuracy of electron transfer, depend significa…
Picosecond coherent electron motion in a silicon single-electron source
Gento Yamahata, Sungguen Ryu, Nathan Johnson +3
Understanding ultrafast coherent electron dynamics is necessary for application of a single-electron source to metrological standards, quantum information processing, including ele…
Evidence for universality of tunable-barrier electron pumps
Stephen P. Giblin, Akira Fujiwara, Gento Yamahata +5
We review recent precision measurements on semiconductor tunable-barrier electron pumps operating in a ratchet mode. Seven studies on five different designs of pumps have reported…