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!
We strive to push the frontiers of quantum information science and its transformative impact across science and engineering. Our research spans quantum algorithms and simulation, hybrid continuous-discrete-variable quantum computing, and quantum engineering, with applications ranging from simulating complex physical and chemical systems to advancing quantum signal processing and error-resilient computation.
We are always looking for motivated students and scholars to join us!
News
| Mar 27, 2026 | Our paper on Efficient Qubit Simulation of Hybrid Oscillator-Qubit Quantum Computation is now on arXiv! In this work, we established a framework for simulating hybrid oscillator-qubit quantum processors on qubit-only systems through position encoding with only a mild polylogarithmic overhead in circuit volume – an exponential improvement over prior Fock basis encoding approaches. |
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| Mar 25, 2026 | Congratulations to Lu Xi for his U(N) QSP paper accepted to Quantum, and Shariful and Joel for their paper on fermi-boson mixed QBE accepted to the Special Collection: Quantum Embedding for Molecules and Materials in the Journal of Chemical Physics! |
| Mar 1, 2026 | Congratulations to Raghav and the CV-DV team for the submission of Quantum simulation of massive Thirring and Gross–Neveu models for arbitrary number of flavors! |
| Feb 28, 2026 | The QUEST group welcome Dr. Cheng Chu joining us as a postdoctorial researcher in our Center for Hybrid Quantum Computing! Also, welcome undergraduate students Nidhi Grover (REU), Samuel Firmansyah (REU), Brandon Wright, Petr Shvarev, Charanjit Dhanasekar, and Vignesh Rajesh joining us to explore various aspects of quantum computing! |
| Feb 28, 2026 | Our work on Compile-once block encodings for masked similarity-transformed effective Hamiltonians is now on arXiv! |
| Jan 22, 2026 | Congratulations to Joel Bierman for his paper Towards utility-scale electronic structure with sample-based quantum bootstrap embedding published in Digital Discovery as part of the themed collection on Quantum Computing in Chemistry, Material Science and Biotechnology! |
| Jan 9, 2026 | Our Perspective article (invited) titled Scalable Quantum Computational Science: A Perspective from Block-Encodings and Polynomial Transformations is accepted to APL Computational Physics and selected as a cover article! |
| Dec 10, 2025 | Congratulations to Prof. Liu for receiving the 2025-26 Goodnight Early Career Innovator Award! The award was established in 2021 to support early-career faculty excellence and to recognize faculty whose scholarship clearly and substantively contributes to innovation and advancement in STEM or STEM education at NC State. Many thanks to the College of Engineering and the University for their generous support! |
| Dec 2, 2025 | Our most recent preprint A Concatenated Dual Displacement Code for Continuous-Variable Quantum Error Correction is online! |
| Nov 30, 2025 | Prof. Liu joins Quantum journal as an editor! |