Condensed Matter Seminar: "Analytical Recursive Method to Ascertain Multisite Entanglement in Doped Quantum Spin Ladders"
Starts 19 Jul 2016 11:30
Ends 19 Jul 2016 13:00
Central European Time
We formulate an analytical recursive method to generate the wave function of doped short-range resonating valence bond (RVB) states as a tool to efficiently estimate multisite entanglement as well as other physical quantities in high-temperature superconducting ladder states, usually described by doping the Mott insulator. We prove that doped RVB ladder states are always genuine multipartite entangled. Importantly, our results show that within specific doping concentration and model parameter regimes, the doped RVB state essentially characterizes the trends of genuine multiparty entanglement in the exact ground states of a Hubbard model with large onsite interactions. More over, the maximum genuine multipartite entanglement in these doped RVB states is observed at relatively large doping concentrations which correspond to the superconducting phase boundary of the Hubbard model.
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