QUEST Lab

Welcome to the Quantum Engineering and Simulation Theory (QUEST) Lab in the Department of Electrical & Computer Engineering and the Department of Computer Science at NC State University in Raleigh, North Carolina!
Our research aims at developing quantum-information-science-inspired algorithms and framework to tackle long-lasting challenges in physical sciences and engineering, with a focus on quantum algorithms and simulation, hybrid continuous-discrete-variable quantum computing, and quantum engineering.
We are always looking for motivated students and scholars to join us to explore the exciting frontier of quantum information science and engineering!
News
Sep 15, 2025 | After working on it for more than 4 years, our Tutorial titled Hybrid Oscillator-Qubit Quantum Processors: Instruction Set Architectures, Abstract Machine Models, and Applications is finally accepted to PRX Quantum! This mega piece has 163 pages, 52 figures, and 714 references, and is a result of an excellent collaboration across NC State, Yale, MIT, Brookhaven National Lab, U Toronto, PNNL, and U Wisconsin-Madison! Thanks Prof. Steven Girvin for leading this and all the team members for their contribution! |
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Aug 26, 2025 | Prof. Liu is now the Column Editor for IEEE Computer Magzine, the flagship publication of the IEEE Computer Society. Computer publishes peer-reviewed articles written for and by professionals representing the full spectrum of computing technology from hardware to software and from current research to new applications. Please consider submitting! |
Aug 24, 2025 | Farewell to Lu! |
Aug 15, 2025 | In collaboration with the Rubenstein Group at Brown University, our review paper titled Quantum Computing Beyond Ground State Electronic Structure: A Review of Progress Toward Quantum Chemistry Out of the Ground State is accepted to Annual Review of Physical Chemistry ! |
Aug 13, 2025 | Our paper on Mixed Analog-Digital Quantum Signal Processing: AD/DA Conversion and the Fourier Transform is accepted to IEEE Transactions on Signal Processing ! |
Aug 12, 2025 | Our paper on parallel quantum signal processing is accepted to Quantum ! |
Aug 1, 2025 | Our paper on Clifford circuit based heuristic optimization of fermion-to-qubit mappings is accepted to Journal of Chemical Theory and Computation ! |
Jul 10, 2025 | Congratulations to Prof. Liu to be elected as a Scialog Fellow on Quantum Matter and Information (2025-2027)! Together with fellow scientists from physics, chemistry, materials science, surface science, applied mathematics, computer science, engineering, and related fields, Prof. Liu will develop new methodologies and help enhance our understanding of the quantum world with an interdisciplinary perspective. |
Jul 1, 2025 | The QUEST group welcome Alexay Mehra and GEARS students Jiaqi Chai, Weiyi An, and Chenfeng Yang for summer research! |
Apr 19, 2025 | Prof. Liu is attending the Quantum Computing Theory in Practice (QCTiP) Conference in Berlin on April 23-25, 2025. He is giving a talk on Unification of Finite Symmetries in Simulation of Many-body Systems on Quantum Computers! |
Selected Publications
2025
- Genesis: A Compiler for Hamiltonian Simulation on Hybrid CV-DV Quantum ComputersIn The 52nd Annual International Symposium on Computer Architecture 2025 (ISCA ’25), 2025
- Implementing Finite Impulse Response Filters on Quantum ComputersIn 2025 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2025