Entanglement in Quantum Spin Chains
Speaker:
Vladimir Korepin (Yang Institute for Theoretical Physics)
Date and Time:
Monday, July 6, 2009 - 3:50pm to 4:20pm
Location:
Fields Institute
Abstract:
We consider models of interacting spins [Heisenberg, AKLT ...] with unique ground state.We are interested in reduced density matrix in the ground state.We calculate the spectrum. This helps to evaluate von Neumann entropy and Renyi entropy of the block. Main examples are XY model, for VBS we can also calculate eigenvectors of the density matrix.
Paper reference: arXiv:0805.3542 , arXiv:0804.1741 , arXiv:0711.3882 , arXiv:0707.2534 , arXiv:quant-ph/0609098