Research Group: Correlated Electrons and Topology

Welcome to our group webpage!  Our group focuses 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?

• 07.10.2019 -- Course information about Proseminar on Theoretical Physics (WS2019/20) is updated; See this page.
• 07.10.2019 -- Joint work with Wei Tang (Peking Univ.), X. C. Xie (Peking Univ.) and Lei Wang (IOP, CAS) on Quantized thermal Hall conductance from edge current calculations in lattice models is published in Phys. Rev. B; see link. Short summary: We have proposed a new approach for calculating thermal Hall conductance in 2D lattice models supporting chiral topological order. Our approach greatly simplifies such calculations as only expecation values of local operators in thermal equilibrium are needed (i.e. no need to calculate dynamical quantities).
• 27.09.2019 -- Sreejith Chulliparambil, enrolled by the International Max Planck Research School for Many-Particle Systems in Structured Environments (IMPRS-MPSSE), joins our group as a PhD student.
• 09.08.2019 -- Joint work with Ying-Hai Wu (HUST) on Exactly solvable quantum impurity model with inverse-square interactions is published in Phys. Rev. Lett.; see link. Short summary: New insights into the Kondo physics have been obtained by constructing an exactly solvable model with a highly structured ground state. A systematic approach for proposing paradigmatic wave functions for more complicated Kondo problems is provided.
• 29.07.2019 -- Lectures on Matrix Product States at Beijing Summer School on Quantum Magnetism; see slides.

See also: past news