首页|Signatures of electron entanglement in a NSNSN BSCCO nanowire

Signatures of electron entanglement in a NSNSN BSCCO nanowire

扫码查看
原文链接
  • NSTL
  • Elsevier
The existence of positive cross-correlated shot noise in superconducting nanowires indicates that a considerable fraction of electrons, in the electron current, violate Bell's inequality and are entangled. The source of entangled electrons is Cooper pair splitting in the superconducting material, and this mechanism provides a means for generating electron entanglement in solid-state devices. We show that a NSNSN nanowire, with ballistic normal (N) segments and BSCCO superconducting (S) segments, can generate scattering resonances that provide a significant source of entangled electrons. We also introduce a bi-partite reduced density matrix for the nanowire, that tracks the behavior of the shot noise and gives additional information about parameter regimes that give rise to entangled electrons.

Solid state electron entanglementComposite superconducting nanowireCooper pair splittingTunneling resonancesHigh-Tc BSCCO superconductorElectron shot noise and Bell's inequalityBi-partite density operator for composite nanowireSHOT-NOISEPAIRS

Reichl, L. E.

展开 >

Univ Texas Austin

2022

10.1016/j.physb.2021.413598

Physica

Physica

ISSN：0921-4526
年,卷(期)：2022.628
  • 2
  • 36