Quantum Technologies with Ultracold Atoms and Lights by Dr. Chuanwei Zhang

    Thursday, June 24, 2021 - 11:00am

    Zoom link: https://us02web.zoom.us/j/83180875526


    From knotted cords to contemporary computers, the revolution of information technologies has been a major driving force for human civilization. Since its birth in early 1900’s, quantum mechanics has played a fundamental role in the innovation of many crucial technologies (e.g., lasers, transistors), which are considered as major achievements of the “first quantum revolution”. In the past two decades, the technological quest has focused on the “second quantum revolution”, with the goal of developing novel quantum technologies that utilize the creation, manipulation, and measurement of quantum superposition and entanglement in quantum materials. In this talk, I will first give a review of this rapidly developing field. I will showcase the great power of quantum technologies with two examples using ultracold atoms manipulated by lights: i) the design of a novel quantum matter - superfluid quasicrystals [1,2]; ii) the realization of a novel quantum device: non-magnetic one-way spin switch [3]. Despite of the technological challenges, quantum technologies could potentially advance our society by revolutionizing computing, communication, security, materials, and sensors in the near future.


    [1] J. Hou, X.-W. Luo, K. Sun, T. Bersano, V. Gokhroo, S. Mossman, P. Engels, C. Zhang, Momentum Space Josephson Effects, Phys. Rev. Lett. 120, 120401 (2018).

    [2] J. Hou, H. Hu, K. Sun, C. Zhang, Superfluid-quasicrystal in a Bose-Einstein condensate, Phys. Rev. Lett.  120, 060407 (2018).

    [3] M. E. Mossman, J. Hou, X.-W. Luo, C. Zhang, P. Engels, Experimental realization of a non-magnetic one-way spin switch, Nature Communications 10, 3381 (2019).

    Speaker Bio(s): 

    Dr. Chuanwei Zhang is a Professor of Physics, Associate Department Head and Graduate Program Head in Department of Physics, University of Texas at Dallas. He received his Ph.D. in Physics from the University of Texas at Austin in 2005 and B.S. from University of Science and Technology of China in 2000. He was a postdoctoral associate at the University of Maryland (2006-2008) and an Assistant Professor at Washington State University (2008-2012). He joined University of Texas at Dallas as an Associate Professor in 2012 and was promoted to Full Professor in 2016.

    Dr. Zhang’s research interests include theoretical ultra-cold atomic gases, quantum information processing, photonics, topological physics, and 2D materials. He has published ~130 articles in peer-reviewed journals, including ~50 in journals like Nature Physics/Communications and Physical Review Letters. He is an elected Fellow of American Physical Society (2017) and was a recipient of DARPA Young Faculty Award (2010) and APS Texas section Robert S. Hyer Award (2015).