物理与电子学院学术报告

报告题目: Quantum phase transition, entanglment and density functional theorey

报告人: 吴连坳（Lian-Ao Wu）教授（Theoretical Physics and History of Science, University of the Basque Country and IKERBASQUE, Basque foundation of Science, 48011, Bilbao, Spain）

时 间: 2016年4月25日（周一）上午10:00-11:30

地 点: 中南大学南校区双超所211报告室

报告摘要：Density functional theory (DFT) is shown to provide a novel conceptual and computational framework for entanglement in interacting many-body quantum systems. DFT can, in particular, shed light on the intriguing relationship between quantum phase transitions and entanglement. We use DFT concepts to express entanglement measures in terms of the first or second derivative of the ground state energy. We illustrate the versatility of the DFT approach via a variety of analytically solvable models. As a further application we discuss entanglement and quantum phase transitions in the case of mean field approximations for realistic models of many-body systems.

报告人简历：Ikerbasque Professor in Department of Theoretical Physics and History of Science and Ikerbasque Foundation, The Basque Country University, Spain (October 2008 – present).

Researcher and Research Associate in Center for Quantum Information & Quantum Control, University of Toronto, Canada (October 2000 – October 2008).

Associate, Full Professor in Theoretical Physics, Department of Physics, Jilin University, Changchun, China (1992 – 1999).

Research Field(s): Quantum Control, Quantum Information Processing, Quantum Computation and devices