# Scaling of entanglement close to a quantum phase transition

@article{Osterloh2002ScalingOE, title={Scaling of entanglement close to a quantum phase transition}, author={Andreas Osterloh and Luigi Amico and Giuseppe Falci and Rosario Fazio}, journal={Nature}, year={2002}, volume={416}, pages={608-610} }

Classical phase transitions occur when a physical system reaches a state below a critical temperature characterized by macroscopic order. Quantum phase transitions occur at absolute zero; they are induced by the change of an external parameter or coupling constant, and are driven by quantum fluctuations. Examples include transitions in quantum Hall systems, localization in Si-MOSFETs (metal oxide silicon field-effect transistors; ref. 4) and the superconductor–insulator transition in two…

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