Welcome to the QUEST Lab!

We are 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 have two postdoctoral positions available on hybrid continuous-discrete variable quantum computing. Interest candidates are encouraged to apply here. We are always looking for motivated students and scholars to join us to explore the exciting frontier of quantum information science and engineering!

News

Nov 19, 2024 In collaboration with Quantinuum, NTT Research, and MIT, our preprint on leveraging group and representation theory for simulation of generic many-body systems (spins, lattices, fermions, quantum chemistry) on quantum computers are now available on arXiv!
Nov 10, 2024 Our preprint on exploring the future of parallel quantum signal processing algorithms are now on arXiv!
Oct 18, 2024 Our work on mixed analog-digital quantum signal processing is now available on arXiv!
Oct 4, 2024 Prof. Liu and NC State led team have received a $10.6M award from the U.S. Department of Energy to investigate the utility of hybrid quantum processors (Press Release). Congratulations to the entire team (NC State, Rutgers University, PNNL, LBNL, NASA Ames, UMass Amherst) and we are excited to embark on the journey!
Sep 9, 2024 Prof. Liu is attending IEEE Quantum Week QCE24 from September 15 - 20 in Montreal, Canada. He will also give an invited talk at the Advancing Quantum Computation Beyond Gate-Model (BGM2024) Workshop at the University of Maryland, College Park on October 7!

Selected Publications

2024

  1. symmetryqsim.png
    Unification of Finite Symmetries in Simulation of Many-body Systems on Quantum Computers
    Victor M Bastidas*, Nathan Fitzpatrick*, KJ Joven, Zane M Rossi, Shariful Islam, Troy Van Voorhis, Isaac L Chuang, and Yuan Liu\(^\dagger\)
    2024
  2. parallelQSP.png
    Parallel Quantum Signal Processing Via Polynomial Factorization
    John M. Martyn, Zane M. Rossi, Kevin Z. Cheng, Yuan Liu, and Isaac L. Chuang
    2024
  3. CV-DV_schematic.png
    Toward Mixed Analog-Digital Quantum Signal Processing: Quantum AD/DA Conversion and the Fourier Transform
    Yuan Liu*\(^\dagger\), John M. Martyn*, Jasmine Sinanan-Singh, Kevin C. Smith, Steven M. Girvin, and Isaac L. Chuang
    2024
  4. 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
    2024
  5. fig2_window.png
    Single-shot Quantum Signal Processing Interferometry
    Jasmine Sinanan-Singh, Gabriel L Mintzer, Isaac L Chuang, and Yuan Liu\(^\dagger\)
    Quantum, 2024

2023

  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. nQSP.png
    Perturbative model of noisy quantum signal processing
    Andrew K Tan\(^\dagger\), Yuan Liu\(^\dagger\), Minh C Tran\(^\dagger\), and Isaac L Chuang
    Physical Review A, 2023

2021

  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

2020

  1. 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

2018

  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