Abstract
Quadratic Bell inequalities for testing the entanglement of multiparticle states were presented. Quantum mechanical inequalities for systems of n spin-1/2 particles (n>2) were analyzed. The inequalities distinguished between fully entangled states and states in which at most n-1 particles were entangled. Results showed that the derived inequalities did not hold for non-quantum mechanical hidden variable (HV) theories.
| Original language | English (US) |
|---|---|
| Article number | 230406 |
| Pages (from-to) | 2304061-2304064 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 88 |
| Issue number | 23 |
| DOIs | |
| State | Published - 2002 |