Research
With entanglement among numerous quantum degrees of freedom, quantum many-body systems’ property is important and interesting in both application and fundamental science. As a key to the next technological revolution, these systems lead to high-temperature superconductors for lossless power transmission, quantum computing devices, high-efficiency photovoltaic devices, and novel transistors for ultrafast switching. On the other hand, the quantum entanglement possesses exotic states of matter, but many traditional perturbative or mean-field approaches are insufficient to address them.
The research of the Wang group lies in elucidating quantum many-body systems using state-of-the-art computational techniques. We are particularly interested in bridging the experimental observations with theoretical models. Our interest also extends to the connection with analog quantum simulations and quantum algorithms.
The research directions can be categories into the following four subsections.
Quantum Dynamics
Exotic electronic states out of equilibrium, pump-probe spectroscopies, photo-induced superconductivity, etc.
Quantum Materials
Strongly correlated materials, spectral characterizations, collective exocitations, electron-phonon coupling, etc.
Quantum Simulation
Ultracold atoms, quantum dots, high-order correlations, quantum simulation of solid-state spectroscopies, etc
Quantum Algorithm
hybrid quantum-classical algorithms, variational algorithms for correlated electrons and phonons, excited states, etc
Most of our research relies on the advances in high-performance computing and modern experimental tools.
Algorithms and Computation
Massively parallel computing, algebraic methods, quantum cluster methods, hybrid variational many-body methods, time-domain method, quantum Monte Carlo, etc.
Connection to Modern Experimental Tools
Resonant inelastic x-ray scattering (RIXS), angle-resolved photoemission (ARPES), Raman scattering, pump-probe optics and x-ray scattering, quantum gas microscopy.