报告题目：Driven Quantum Materials: Controlling Emergent Phenomena away from Equilibrium
报告时间：2026年4月2日 16:00
报告地点：物理楼W101报告厅
内容摘要：I will discuss how coherent electromagnetic radiation, when tuned to collective modes in quantum materials, can be used to induce unexpected dynamical phenomena. Non-equilibrium emergent order, which include superconductivity, magnetism, ferroelectricity and other functional phenomena are perturbed, switched, suppressed or amplified in this way, with both fundamental and applied ramifications. I will touch on the crucial importance of modern ultrafast X-Ray Free Electron Lasers, and novel THz sources that are matched to these.
报告人简介：Andrea Cavalleri is the founding director of the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg (Germany) and a professor of Physics at the University of Oxford (UK). After receiving a laurea degree from the University of Pavia (Italy), he held graduate, postgraduate, and research staff positions at the University of Essen (Germany), at the University of California, San Diego (US), and at the Lawrence Berkeley National Laboratory (US). He joined the Oxford faculty in 2005. He is best known for his experimental studies of the photo-induced phase transition in materials with strongly correlated electrons, such as transition metal oxides and organic conductors. In recent years, his research group has developed techniques that make use of strong TeraHertz pulses to manipulate directly lattice distortions and other collective modes of solids. Through precise optical control, he has shown that ordered states like superconductivity or ferroelectricity can be induced by light at temperatures far above the thermodynamic transition temperature. Motivated by the need to probe driven materials, he has also been a major driver in the development of ultrafast X-ray techniques since their inception in the late 1990s through their modern incarnation at X-ray Free Electron Lasers.
