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Analysis of Entanglement in Ladder Lattices

Asgharpour, Ali | 2012

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 43880 (04)
  4. University: Sharif University of Technology
  5. Department: Physics
  6. Advisor(s): Jafari, Akbar; Rezakhani, Ali
  7. Abstract:
  8. Since concepts in quantum information theory has recently been applied to characterize states in many-body systems, we survey entanglement of the ground states in the S = 1/2 antiferromagnetic Heisenberg ladder systems and 2D square lattices. The Lancz¨os method for exact diagonalization of quantum spin models are used to find the ground states. Moreover, effect of defect in ladder on entanglement and ground state energy are studied
  9. Keywords:
  10. Entanglement ; Quantum Information Theory ; Quantum Phase Transition ; Resonating Valence Bond ; Fidelity ; Ladder System

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