I am Guangze Chen, a postdoctoral researcher in Department of Microtechnology and Nanoscience, Chalmers University of Technology, Sweden. My supervisor is Prof. Anton Frisk Kockum.
Current research interests
I am interested in developing new methods for solving open quantum many-body systems. In particular, this is divided into a quantum approach and a classical one.
The quantum approach involves designing new protocols for the quantum simulation of open quantum many-body systems. In particular, I have been investigating how giant atoms, a recently raised quantum optical platform, can be versatile for quantum simulation.
The classical approach involves developing new numerical tools to study open quantum many-body systems. In particular, I have developed the numerical library NHKPM.jlto efficiently compute dynamical correlators in many-body open quantum systems. This library is based on matrix-product states and the kernel polynomial method.
Previous works
Exotic phases in van der Waals materials
Van der Waals materials are recently raised materials as versatile platforms for engineering. I am interested in how exotic phases of matter can be realized and probed in van der Waals materials with different ways of engineering. My past research has focused on identifying Dirac QSL with impurity and twist engineering, as well as driving 1T-TaS2 to the QSL regime with Coulomb engineering. I have collaborated with experimentalists on the STM characterization of aritificial heavy-fermions in 1T-TaS2/1H-TaS2 heterostructureand nodal superconductivity in 1H-TaS2.
Non-Hermitian many-body physics
Recently, non-Hermitian Hamiltonians have attracted much interest as an effective description of the dynamics of open quantum systems. While their properties have been relatively well-understood in 1D single-particle systems, unveiling their properties in the many-body regime represents a big challenge due to numerical difficulties. I have designed an algorithm to investigate 1D non-Hermitian spin models.
I am a postdoctoral researcher at Chalmers University of Technology, Sweden. My supervisor is Prof. Anton Frisk Kockum. I did my Ph.D. between 2019 and 2023, at Aalto University, Finland, supervised byProf. Jose L. Lado. I did my Master of Physics at ETH Zurich between 2017 and 2019, and my Master's thesis was supervised by Prof. Oded Zilberberg and Prof. Wei Chen. My PhD research has focused on designing exotic phases of matter in van der Waals materials. Currently, I am focusing on developing new methods for open quantum many-body systems.
Open source library development
Twistronics.jl : Julia package to study twisted 2D heterostructures with tight-binding modeling
NHKPM.jl : Julia library to compute dynamical correlators of non-hermitian many-body Hamiltonians
with matrix-product states and kernel polynomial method