A chain of three oscillators A, B, C with nearest neighbour coupling, is considered. It is shown that the correlations between A, C (which are not coupled directly) can be stronger than the correlations between A, B. Also in some cases various witnesses of entanglement show that A, C are entangled but they cannot lead to any conclusion about A, B.
|Number of pages||6|
|Journal||Journal of Modern Optics|
|Publication status||Published - 26 Apr 2010|
- coupled oscillators