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

Aug 6, 2026 Application and registration is now open for our long KITP program From Quantum Control to Algorithms and Back and the associated conference Bridging Quantum Control and Algorithms - New Frontiers in Computation, Feedback, and Quantum Matter! Look forward to meeting new and old friends in Santa Barbara in Spring 2028!
Aug 1, 2026 Congratulations to postdoc Cheng Chu on landing a tenure-track position at George Mason University! Best wishes, Cheng - well deserved.
Jul 30, 2026 Our paper A Provable Oracle-Free Quantum Algorithm for Nonlinear Dynamics on Hybrid Oscillator-Qubit Processors is now on arXiv! Congratulations to Kausthubh and thank Prof. Yan Li (Penn State) for the collaboration!
Jul 30, 2026 Our paper Compile-once block encodings for masked similarity-transformed effective Hamiltonians is accepted for publication in Advanced Quantum Technologies. Congratulations to Prof. Liu collaborators from PNNL!
Jul 9, 2026 Congratulations to Aishwarya and Mas for their papers (Robust Quantum Algorithmic Binary Decision-Making on Gaussian Signals, HyPulse: A Pulse Synthesis Framework for Hybrid Qubit-Oscillator Gates on Trapped-Ion Platform) being accepted to IEEE Quantum Week 2026! See you in Toronto.
Jul 1, 2026 Our review paper When AI meets quantum information: A comprehensive review, is now on arXiv. Check it out and let us know your thoughts!
Jun 26, 2026 We are hosting a Workshop on Signal and Information Processing in the Quantum Era at the IEEE Quantum Week in Toronto in September 13-18, 2026! Fill out this google form by 31st Aug 2026 to apply for NSF travel awards to attend the workshop and IEEE Quantum Week.
Jun 25, 2026 Our paper Analytic Approach to Quantum Control Using Quantum Signal Processing is now on arXiv, led by PhD student Aishwarya Majumdar! In collaboration with John Martyn (PNNL & Harvard) and Nathan Wiebe (U Toronto/PNNL), we introduce QSP-Control, an analytic framework that brings the rigorous design principles of quantum signal processing into quantum control, enabling systematic pulse constructions for qubit-oscillator systems and precise manipulation of Fock states.
Jun 11, 2026 Our paper Quantum simulation of massive Thirring and Gross–Neveu models for arbitrary number of flavors is now published on Physical Review D! Congratulations to postdoc Raghav and the CV-DV team!
May 12, 2026 Congratulations to Fucheng for his Concatenated dual displacement code for continuous-variable quantum error correction published in Physical Review Research! This is a new concatenated logical oscillator code that can correct arbitrary random displacement errors.