Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session M62: Electron Transport in Nanostructures II
11:15 AM–1:51 PM,
Wednesday, March 4, 2020
Room: Mile High Ballroom 4C
Sponsoring
Unit:
DMP
Chair: Xuan Gao, Case Western Reserve University
Abstract: M62.00007 : Bell-state correlation in electric currents through lead electrodes connected to a quantum dot*
Presenter:
Rui Sakano
(Institute for solid state physics, University of Tokyo)
Authors:
Rui Sakano
(Institute for solid state physics, University of Tokyo)
Akira Oguri
(Physics, Osaka city university)
Mikio Eto
(Physics, Keio university)
We show that quantum entanglement can be formed in the current even if there is no effective Coulomb interactions in the quantum dot. Namely, we investigate current that is induced by sequential tunneling or free quasiparticles scattering in the Kondo regime.
Specifically, we find that application of bias-voltages among the lead electrode generate electron-hole, electron-electron, and hole-hole pairs are excited among the lead electrodes. Thsese pairs can violate Bell's inequality
[1] N. M. Chtchelkatchev, G. Blatter, G. B. Lesovik, and T. Martin, Phys. Rev. B 66, 161320(R) (2002).
*This work was partially supported by the JST CREST Grant No. JPMJCR1876, Japan, and the Japan Society for the Promotion of Science KAKENHI Grant No. JP18K03495.
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