Research Group: Correlated Electrons and Topology

Welcome to our group webpage!  We focus on theoretical and numerical studies of condensed matter physics. Below you find links to the research and teaching activities of our group.

What's new?

• 19.06.2020 -- Joint work with Ying-Hai Wu (USTC) and Lei Wang (IOP, CAS) on Tensor network representations of parton wave functions is published in Phys. Rev. Lett.; see link and recent  slides. Short summary: We have devised a systematic approach to represent parton wave functions (also known as Gutzwiller projected wave functions) as tensor network states and then compress them into matrix product states. This nicely combines the advantanges of two methods – tensor networks and variational Monte Carlo – that have been widely used in condensed matter physics and quantum chemistry.
• 24.04.2020 -- Joint work with Hui-Ke Jin (Zhejiang Univ.) and Yi Zhou (IOP, CAS) on Efficient tensor network representation for Gutzwiller projected states of paired fermions is published in Phys. Rev. B; see link. Short summary: We have developed a systematic approach to represent projected BCS states as tensor networks and compress them as matrix product states, from which efficient computations of physical quantities and entanglement measures can be performed for this important family of variational ansatz.
• 01.04.2020 -- Due to the COVID-19 situation, the Solid State Theory (SS2020) lectures will be first held online via Zoom until further notice. For enrolment and instructions on how to join the online lectures, please send an email to the lecturer. The course information is being continuously updated in this page.
• 21.02.2020 -- Talk on "Tensor network representations of parton wave functions" at Benasque workshop on Entanglement in Strongly Correlated Systems; see slides.

See also: past news