Elementary Charge Transfer Processes in a Superconductor-Ferromagnet Entangler
arXiv:cond-mat/0612197 · doi:10.1209/0295-5075/81/40002
Abstract
We study the production of spatially separated entangled electrons in ferromagnetic leads from Cooper pairs in a superconducting lead. We give a complete description of the elementary charge transfer processes, i) transfer of Cooper pairs out of the superconductor by Andreev reflection and ii) distribution of the entangled quasiparticles among the ferromagnetic leads, in terms of their statistics. The probabilities that entangled electrons flow into spatially separated leads are completely determined by experimentally measurable conductances and polarizations. Finally, we investigate how currents, noise and cross correlations are affected by transport of entangled electrons.
5 pages. Rewritten manuscript with 2 new figures. Title changed from v1
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Cited by in corpus (16)
- Spin-dependent boundary conditions for isotropic superconducting Green's functions
- Spin-induced charge correlations in transport through interacting quantum dots with ferromagnetic leads
- Full counting statistics of crossed Andreev reflection
- Positive current cross-correlations in a highly transparent normal-superconducting beam splitter due to synchronized Andreev and inverse Andreev reflections
- Self-consistent microscopic calculations for non-local transport through nanoscale superconductors
- Spin correlation and entanglement detection in Cooper pair splitters by current measurements using magnetic detectors
- From Cooper pair splitting to the non-local spectroscopy of a Shiba state
- Gate-tunable zero-frequency current cross-correlations of the quartet mode in a voltage-biased three-terminal Josephson junction
- Charge transfer statistics and entanglement in normal-quantum dot-superconductor hybrid structures
- Entanglement witnessing in superconducting beamsplitters
- Kondo effect and spin-active scattering in ferromagnet-superconductor junctions
- Full Counting Statistics of Generic Spin Entangler with Quantum Dot-Ferromagnet detectors
- P-wave Cooper pair splitting
- Maximal positive cross shot noise from Andreev reflection
- Focused Crossed Andreev Reflection
- Quantum Spin Tomography in Ferromagnet-Normal Conductors