Quantum Engineering and Simulation Theory (QUEST) @ NC State

We are the Quantum Engineering and Simulation Theory (QUEST) group 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 discrete-continuous-variable quantum information processing, and quantum engineering.

We are always looking for motivated students and scholars to join us. Interested students and scholars are encouraged to contact Prof. Liu.


Jul 22, 2024 The QUEST group welcomes visiting undergraduate students, Leonard Li and Lingjun Xiong (GEARS program), and Langxu Bai!
Jul 7, 2024 Our quantum sensing paper Single-shot Quantum Signal Processing Interferometry is accepted to the Quantum Journal!
May 24, 2024 Our paper ARQUIN: Architectures for Multinode Superconducting Quantum Computers is accepted to ACM Transactions on Quantum Computing!
May 5, 2024 The QuEST group welcomes new postdoc scholar Dr. Joel Bierman and graduate student Aishwarya Majumdar to join us! We’re also pleased to welcome Master student Manideepika Reddy and undergraduate student Daniel Dong for summer research!
Mar 24, 2024 I will serve as the PC member for QCE24. Please consider to submit your papers there!
Mar 22, 2024 Congratulations to the QuEST group to receive the Oak Ridge Leadership Computing Facility’s QCUP award to use quantum computing hardware time from Quantinuum, IonQ, and Regetti for quantum chemistry simulation!
Mar 4, 2024 Prof. Liu gave an invited talk at APS March Meeting on Opportunities and challenges of bosonic oscillators for quantum computation and information processing in Minneapolis, MN!
Jan 7, 2024 Prof. Liu is teaching a new graduate-level course on Quantum Algorithms for Physical Sciences this semester at NC State! See here for more details.

Selected Publications


  1. readersguide.png
    Hybrid Oscillator-Qubit Quantum Processors: Instruction Set Architectures, Abstract Machine Models, and Applications
    Yuan Liu*, Shraddha Singh*, Kevin C Smith*, Eleanor Crane, John M Martyn, Alec Eickbusch, Alexander Schuckert, Richard D Li, Jasmine Sinanan-Singh, Micheline B Soley, and  others
    arXiv preprint arXiv:2407.10381, 2024
  2. fig2_window.png
    Single-shot Quantum Signal Processing Interferometry
    Jasmine Sinanan-Singh, Gabriel L Mintzer, Isaac L Chuang, and Yuan Liu\(^\dagger\)
    Quantum, 2024


  1. QBE.png
    Bootstrap Embedding on a Quantum Computer
    Yuan Liu\(^\dagger\), Oinam R Meitei, Zachary E Chin, Arkopal Dutt, Max Tao, Isaac L Chuang, and Troy Van Voorhis\(^\dagger\)
    Journal of Chemical Theory and Computation, 2023
  2. OneShot_Circuit2.pdf
    Efficient fully-coherent quantum signal processing algorithms for real-time dynamics simulation
    John M Martyn, Yuan Liu, Zachary E Chin, and Isaac L Chuang
    The Journal of Chemical Physics, 2023
  3. ALEC.pdf
    Error Correction of Quantum Algorithms: Arbitrarily Accurate Recovery Of Noisy Quantum Signal Processing
    Andrew K Tan\(^\dagger\), Yuan Liu\(^\dagger\), Minh C Tran\(^\dagger\), and Isaac L Chuang
    arXiv preprint arXiv:2301.08542, 2023


  1. QOQ.png
    Constructing qudits from infinite-dimensional oscillators by coupling to qubits
    Yuan Liu\(^\dagger\), Jasmine Sinanan-Singh, Matthew T Kearney, Gabriel Mintzer, and Isaac L Chuang
    Physical Review A, 2021


  1. piDBS.png
    Observation of a \(\pi\)-type dipole-bound state in molecular anions
    Dao-Fu Yuan*, Yuan Liu*, Chen-Hui Qian, Yue-Rou Zhang, Brenda M Rubenstein, and Lai-Sheng Wang
    Physical Review Letters, 2020
  2. QBS_tcnb.png
    Observation of a symmetry-forbidden excited quadrupole-bound state
    Yuan Liu, Guo-Zhu Zhu, Dao-Fu Yuan, Chen-Hui Qian, Yue-Rou Zhang, Brenda M Rubenstein, and Lai-Sheng Wang
    Journal of the American Chemical Society, 2020


  1. J. Chem. Theory Comput.
    Ab initio finite temperature auxiliary field quantum Monte Carlo
    Yuan Liu, Minsik Cho, and Brenda Rubenstein
    Journal of Chemical Theory and Computation, 2018