Universal nonlinear entanglement witnesses

作者:Kotowski Marcin; Kotowski Michal; Kus Marek
来源:Physical Review A, 2010, 81(6): 062318.
DOI:10.1103/PhysRevA.81.062318

摘要

We give a universal recipe for constructing nonlinear entanglement witnesses able to detect nonclassical correlations in arbitrary systems of distinguishable and/or identical particles for an arbitrary number of constituents. The constructed witnesses are expressed in terms of expectation values of observables. As such, they are, at least in principle, measurable in experiments.

  • 出版日期2010-6-16