Kondo Anyons

Abstract: A bath of free electrons interacting with a local quantum impurity leads to various exotic non-Fermi liquid behaviors, such as the non-integer effective ground state degeneracy of the impurity and the correction to the zero-temperature conductance, which is temperature to the power of a fractional number. The former indicates emergent anyons (Majorana fermion, Fibonacci anyon, Z3 parafermion, and so on), which are the key ingredients for achieving topologically protected quantum computations. The latter can be used for experimentally probing non-Fermi liquid physics. In this talk, I’ll introduce and compare quantum impurity models with different symmetry groups and comment on future work such as the strong coupling conductance of the topological Kondo model and the two-impurity Kondo anyon fusion device.

Brief bio: Guangjie Li, PhD student from Purdue University. He got his BSc degree at Sun Yat-sen University (2018) where he worked on topological states (by using analytical and numerical methods) and modified gravity. He is currently working on quantum impurity problems with applications to topological quantum computation.