Entanglement detection for electrons via witness operators
arXiv:cond-mat/0607645 · doi:10.1103/PhysRevB.75.165327
Abstract
We discuss an implementation of the entanglement witness, a method to detect entanglement with few local measurements, in systems where entangled electrons are generated both in the spin and orbital degrees of freedom. We address the efficiency of this method in various setups, including two different particle-hole entanglement structures, and we demonstrate that it can also be used to infer information on the possible dephasing afflicting the devices.
12 pages, 5 figures; published version
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- Noise cross-correlation and Cooper pair splitting efficiency in multi-teminal superconductor junctions
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- Quantitative entanglement witnesses of Isotropic- and Werner-class via local measurements
- Entanglement Witnesses from Single-Particle Interference