論文

査読有り
2019年4月2日

Bell-state correlations of quasiparticle pairs in the nonlinear current of a local Fermi liquid

PHYSICAL REVIEW B
  • Sakano Rui
  • ,
  • Oguri Akira
  • ,
  • Nishikawa Yunori
  • ,
  • Abe Eisuke

99
15
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevB.99.155106

We study Bell-state correlations for quasiparticle pairs excited in nonlinear current through a double quantum dot in the Kondo regime. Exploiting the renormalized perturbation expansion in the residual interactions of the local Fermi liquid and Bell's inequality for cross correlation of spin currents through distinct conduction channels, we derive an asymptotically exact form of Bell's correlation for the double dot at low bias voltages. We find that pairs of quasiparticles and holes excited by the residual exchange interaction violate Bell's inequality for the spin currents.

https://arxiv.org/abs/1810.13032

リンク情報
DOI
https://doi.org/10.1103/PhysRevB.99.155106

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