Scaling of the entanglement spectrum near quantum phase transitions

L. Lepori, G. De Chiara, A. Sanpera

Research output: Contribution to journalArticleResearchpeer-review

51 Citations (Scopus)


The entanglement spectrum describing quantum correlations in many-body systems has been recently recognized as a key tool to characterize different quantum phases, including topological ones. Here we derive its analytically scaling properties in the vicinity of some integrable quantum phase transitions and extend our studies also to nonintegrable quantum phase transitions in one-dimensional spin models numerically. Our analysis shows that, in all studied cases, the scaling of the difference between the two largest nondegenerate Schmidt eigenvalues yields with good accuracy critical points and mass scaling exponents. © 2013 American Physical Society.
Original languageEnglish
Article number235107
JournalPhysical Review B - Condensed Matter and Materials Physics
Publication statusPublished - 7 Jun 2013


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