Huanqian Loh

Research Themes

Quantum Computing

Research Interests

Quantum information science, quantum simulation, quantum sensing, neutral atom arrays

Bio

Huanqian (Hazel) Loh is an Assistant Professor at both the ECE and Physics departments. She leads a team that builds defect-free neutral atom arrays using reconfigurable optical tweezers for quantum simulation, quantum computation, and quantum sensing. Her recent interests include far-from-equilibrium quantum dynamics, Hilbert space fragmentation, and engineering robust quantum systems.

As a Principal Investigator, Huanqian has been recognized as a L'Oreal-UNESCO For Women In Science International Rising Talent and has served on the World Economic Forum Global Future Council on Quantum Computing. In July 2024, Huanqian moved her team from the National University of Singapore to join the Duke Quantum Center.

Education

• Ph.D. University of Colorado, Boulder, 2013

Positions

• Assistant Professor of Electrical and Computer Engineering
• Assistant Professor of Physics
• Member of the Duke Quantum Center

Courses Taught

• PHYSICS 264L: Optics and Modern Physics
• ECE 590: Advanced Topics in Electrical and Computer Engineering

Publications

• Zhao L, Datla PR, Tian W, Aliyu MM, Loh H. Observation of Quantum Thermalization Restricted to Hilbert Space Fragments and Z_{2k} Scars. Physical Review X. 2025 Feb 18;15(1).
• Zhao L, Datla PR, Tian W, Aliyu MM, Loh H. Observation of quantum thermalization restricted to Hilbert spacen fragments. 2024.
• Zhao L, Lee MDK, Aliyu MM, Loh H. Floquet-tailored Rydberg interactions. Nature communications. 2023 Nov;14(1):7128.
• Shen R, Chen T, Aliyu MM, Qin F, Zhong Y, Loh H, et al. Proposal for Observing Yang-Lee Criticality in Rydberg Atomic Arrays. Physical review letters. 2023 Aug;131(8):080403.
• Becher C, Gao W, Kar S, Marciniak CD, Monz T, Bartholomew JG, et al. 2023 roadmap for materials for quantum technologies. Materials for Quantum Technology. 2023 Mar 1;3(1).
• Tian W, Wee WJ, Qu A, Lim BJM, Datla PR, Koh VPW, et al. Parallel Assembly of Arbitrary Defect-Free Atom Arrays with a Multitweezer Algorithm. Physical Review Applied. 2023 Mar 1;19(3).
• Tian W, Wee WJ, Qu A, Lim BJM, Datla PR, Koh VPW, et al. Parallel assembly of arbitrary defect-free atom arrays with an multi-tweezer algorithm. 2022.
• Aliyu MM, Zhao L, Quek XQ, Yellapragada KC, Loh H. D1 magic wavelength tweezers for scaling atom arrays. Physical Review Research. 2021 Oct 21;3(4).
• Decamp J, Gong J, Loh H, Miniatura C. Universal graph description for one-dimensional exchange models. Physical Review Research. 2020 Aug 24;2(3).
• Yan ZZ, Park JW, Ni Y, Loh H, Will S, Karman T, et al. Resonant Dipolar Collisions of Ultracold Molecules Induced by Microwave Dressing. Physical review letters. 2020 Aug;125(6):063401.
• Decamp J, Gong J, Loh H, Miniatura C. Graph-theory treatment of one-dimensional strongly repulsive fermions. Physical Review Research. 2020 Apr 20;2(2).
• Ding S, Maslennikov G, Hablu00fctzel R, Loh H, Matsukevich D. Quantum Parametric Oscillator with Trapped Ions. Physical review letters. 2017 Oct;119(15):150404.
• Park JW, Yan ZZ, Loh H, Will SA, Zwierlein MW. Second-scale nuclear spin coherence time of ultracold ²³Na⁴⁰K molecules. Science (New York, NY). 2017 Jul;357(6349):372u20135.
• Will SA, Park JW, Yan ZZ, Loh H, Zwierlein MW. Coherent Microwave Control of Ultracold ^{23}Na^{40}K Molecules. Physical review letters. 2016 Jun;116(22):225306.
• Ding S, Maslennikov G, Hablutzel R, Loh H, Matsukevich D. Phonon-phonon interactions in a linear ion trap. In: 2015 11th Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2015. 2016.
• Loh H, Ding S, Hablutzel R, Maslennikov G, Matsukevich D. Zeeman-splitting-assisted quantum-logic spectroscopy of trapped ions. Physical Review A - Atomic, Molecular, and Optical Physics. 2014 Dec 29;90(6).
• Ding S, Loh H, Hablutzel R, Gao M, Maslennikov G, Matsukevich D. Microwave control of trapped-ion motion assisted by a running optical lattice. Physical review letters. 2014 Aug;113(7):073002.
• Ni KK, Loh H, Grau M, Cossel KC, Ye J, Cornell EA. State-specific detection of trapped HfF⁺ by photodissociation. Journal of Molecular Spectroscopy. 2014 Jan 1;300:12u20135.
• Loh H, Cossel KC, Grau MC, Ni K-K, Meyer ER, Bohn JL, et al. Precision spectroscopy of polarized molecules in an ion trap. Science (New York, NY). 2013 Dec;342(6163):1220u20132.
• Loh H, Stutz RP, Yahn TS, Looser H, Field RW, Cornell EA. REMPI spectroscopy of HfF. Journal of Molecular Spectroscopy. 2012 Jun 1;276u2013277(1):49u201356.
• Grau M, Leanhardt AE, Loh H, Sinclair LC, Stutz RP, Yahn TS, et al. Near-infrared LIF spectroscopy of HfF. Journal of Molecular Spectroscopy. 2012 Feb 1;272(1):32u20135.
• Leanhardt AE, Bohn JL, Loh H, Maletinsky P, Meyer ER, Sinclair LC, et al. High-resolution spectroscopy on trapped molecular ions in rotating electric fields: A new approach for measuring the electron electric dipole moment. Journal of Molecular Spectroscopy. 2011 Nov 1;270(1):1u201325.
• Loh H, Wang J, Grau M, Yahn TS, Field RW, Greene CH, et al. Laser-induced fluorescence studies of HfF+ produced by autoionization. The Journal of chemical physics. 2011 Oct;135(15):154308.
• Loh H, Lin Y-J, Teper I, Cetina M, Simon J, Thompson JK, et al. Influence of grating parameters on the linewidths of external-cavity diode lasers. Applied optics. 2006 Dec;45(36):9191u20137.
• Thompson JK, Simon J, Loh H, Vuletic V. A high-brightness source of narrowband, identical-photon pairs. Science (New York, NY). 2006 Jul;313(5783):74u20137.
• Chabanenko V, Puu017aniak R, Nabiau0142ek A, Vasiliev S, Rusakov V, Loh H, et al. Flux Jumps and H-T Diagram Instability for MgB2. Journal of Low Temperature Physics. 2003;130(3/4):175u201391.

In The News

• Huanqian Loh Selected for 2025 Sloan Research Fellowship (Feb 19, 2025 | )
• Huanqian Loh: Exploring Quantum Systems with Neutral Atoms (Sep 13, 2024 | )