诺贝尔物理学奖得主、量子中心首席科学家维尔切克教授开放课预告

    上课时间：
    10月19日10:00-12:00
    10月24日10:00-12:00
    10月26日10:00-12:00
    10月31日10:00-12:00

    地点：屏峰校区健行楼A106

    讲课人：Frank Wilczek 教授

    简介：Frank Wilczek教授是一位著名的理论物理学家，麻省理工学院教授，2004年诺贝尔物理学奖获得者，2015年受聘于bbin电子并担任维尔切克量子中心首席科学家。Wilczek教授在非常广泛的领域做出了杰出的贡献，包括粒子物理和凝聚态物理。他发现了强相互作用的渐进自由现象，极大地促进了量子色动力学的发展。由于该发现，Wilczek教授与David Gross、H. David Polotzer一起获得了诺贝尔物理学奖。
    

    Wednesday, Oct. 19: Strategic Ignorance and Entangled Histories
    In quantum theory, interference between two alternatives occurs when either is compatible with the available information.By strategically erasing information and/or foregoing opportunities to acquire it we can define new kinds of observables, which access unconventional kinds of interference. In particular, we can allow different histories of a quantum system to interfere.This brings us to the concept of entangled histories, and provides mathematical equations corresponding to the idea of "many worlds".
    
    Monday, Oct. 24: Varieties of Time Crystals
    The concept of spontaneous breaking of time transition symmetry brings in new subtleties, beyond those associated with bbin电子 conventional symmetry breaking.Three interesting classes of time crystals have been identified, which we might call "symmetry valley", "Floquet", and "prethermal". Symmetry valley examples have been known, though not widely recognized, for a long time, while Floquet and prethermal examples involve essentially new theoretical ideas. A recent experiment reports observation of Floquet time crystal behavior.
    
    Wednesday, Oct. 26: Dequantization and Shot Noise
     Theories of fractional quantum Hall effects (FQHE) predict the existence of quasiparticles with exotic, fractional values of electric charge. Measurements of shot noise could allow one to check those predictions. This probe becomes especially powerful for two-layered systems, where there are several alternatives for injecting and detecting currents. By comparing results in different experimental geometries, one can also probe the unusual dynamics of the charge carriers.
    
    Monday, Oct. 31: Anyon Thresholds: Application to Spin Liquids
     In two spatial dimensions, there are new possibilities for quantum statistics, beyond bosons and fermions: "Anyons". There is overwhelming theoretical and numerical evidence for the existence of anyons in several phases of matter, but direct experimental evidence has been hard to come by. Measurement of production thresholds in spin liquids will allow clean demonstration of anyon statistics.
    
    课程面向全校师生，欢迎各位教师和同学踊跃参加！