@article{article8f6a9636, title = {Entanglement and classical instabilities: fingerprints of electron-hole-to-exciton phase transition in a simple model}, author = {Moreira, Tathiana and Pellegrino, Giancarlo Q and Faria, J G Peixoto de and Nemes, Maria Carolina and Camargo, F and Piza, Antonio Fernando Ribeiro de Toledo}, year = {2008}, doi = {10.1103/physreve.77.051102}, journal = {Physical Review E} }