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Quantum phase transitions and matrix product states in spin ladders

Asoudeh, M ; Sharif University of Technology | 2007

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  1. Type of Document: Article
  2. DOI: 10.1103/PhysRevB.75.224427
  3. Publisher: 2007
  4. Abstract:
  5. We investigate quantum phase transitions in ladders of spin- 1 2 particles by engineering suitable matrix product states for these ladders. We take into account both discrete and continuous symmetries and provide general classes of such models. We also study the behavior of entanglement between different neighboring sites near the transition point and show that quantum phase transitions in these systems are accompanied by divergences in derivatives of entanglement. © 2007 The American Physical Society
  6. Keywords:
  7. Matrix Product ; Renormalization Group ; Quantum Spin Chain
  8. Source: Physical Review B - Condensed Matter and Materials Physics ; Volume 75, Issue 22 , 2007 ; 10980121 (ISSN)
  9. URL: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.75.224427