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Monday 16 September 2013, 11:00-11:45
Mott physics, sign structure, and high-TC superconductivity
- đ¤ Speaker: Weng, ZY (Tsinghua University)
- đ Date & Time: Monday 16 September 2013, 11:00 - 11:45
- đ Venue: Seminar Room 1, Newton Institute
Abstract
Fermion sign structure constitutes the foundation of the Landaus Fermi liquid theory in condensed matter physics. But it will be fundamentally changed by the strong interaction in the so-called doped Mott insulator relevant to high-Tc cuprate materials. New novel sign structure as reduced Fermion signs will appear here, which can be precisely captured by a nonintegrable phase factor like emergent topological gauge fields in the simplest doped Mott insulators: the t-J and Hubbard models. The quantum interference of the altered Fermion signs will result in non-Fermi-liquid/non-BCS-type normal/superconducting phenomena, which may provide a systematical understanding of the anomalous properties observed in cuprate superconductors.
Series This talk is part of the Isaac Newton Institute Seminar Series series.
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