R·01
Solid-state spin defects
Coherent control, polarization, and electrical or optical readout of spin defects in van der Waals materials, with an emphasis on boron vacancies in hBN.
MatterShihao Ru · Quantum Physicist
Quantum systems,
engineered from first principles.
QuantRu explores solid-state spin defects, quantum sensing, photonic quantum information, and the instruments that make precise quantum control possible.
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Solid-state spin control
Singapore · 01° N
01 / Spin defects
02 / Quantum sensing
03 / Photonic information
04 / Instrumentation
01 About
Working where quantum matter meets precise control.
Shihao Ru is a Research Fellow at the National Centre for Advanced Integrated Photonics, Nanyang Technological University. His work connects fundamental quantum physics with experimental platforms designed for sensing, communication, and simulation.
He received his Ph.D. in Physics from Xi'an Jiaotong University, where he developed methods to control multiple degrees of freedom of light for quantum information processing. Before joining NTU, he was a Research Fellow at the Centre for Quantum Technologies, National University of Singapore.
02 Research
Four connected scales of quantum research.
R·02
Quantum sensing
Device concepts and measurement protocols that turn atomic-scale spin phenomena into practical magnetic-field and nanoscale sensing platforms.
MeasurementR·03
Photonic quantum information
High-dimensional gates, multi-photon entanglement, quantum teleportation, nonlocality, contextuality, and scalable optical protocols.
InformationR·04
Quantum instrumentation
Automated experiment control, high-speed modulation of structured light, low-temperature platforms, and FPGA systems for quantum experiments.
Control03 Publications
Selected work.
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2026↗
All-Optical Wide-Field Magnetometry with Van Der Waals Quantum Sensor
F. Zhou, P. Ma, J. Li, K. Jing, S. Ru, et al.
arXiv:2606.07899
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2025↗
Room-Temperature Electrical Readout of Spin Defects in van der Waals Materials
S. Ru, L. An, H. Liang, Z. Jiang, Z. Li, et al.
Physical Review Letters 135, 220802 · Featured in Physics
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2025↗
Observation of Ferromagnetic Phase in the Second Moiré Band of Twisted MoTe₂
L. An, H. Pan, W.-X. Qiu, N. Wang, S. Ru, et al.
Nature Communications 16, 5131
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2024↗
Robust Nuclear Spin Polarization via Ground-State Level Anticrossing of Boron Vacancy Defects in hBN
S. Ru, Z. Jiang, H. Liang, J. Kenny, H. Cai, et al.
Physical Review Letters 132, 266801 · Editors' Suggestion
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2023↗
Quantum-Metric-Induced Nonlinear Transport in a Topological Antiferromagnet
N. Wang, D. Kaplan, Z. Zhang, T. Holder, N. Cao, et al., including S. Ru
Nature 621, 487–492
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2023↗
Experimental Demonstration of Quantum Overlapping Tomography
Z. Yang, S. Ru, L. Cao, N. Zheludev, W. Gao
Physical Review Letters 130, 050804
04 Projects
From physical mechanism to working platform.
Current direction01
Electrical readout of quantum spins
Developing compact routes to detect and control spin defects in two-dimensional materials without relying exclusively on conventional optical readout.
- Van der Waals quantum sensors
- Spin-dependent ionization
- On-chip integration
Photonics02
Rydberg-polariton nonlinearities
Realizing and coherently controlling photon–photon interactions through Rydberg exciton polaritons for future quantum photonic devices.
NSFC participantFoundations03
Quantum many-body simulation
Studying spin modulation, open-system quantum characteristics, and experimental routes toward controllable many-body quantum dynamics.
Experiment + theory05 Contact
National Centre for Advanced Integrated Photonics
Nanyang Technological University
21 Nanyang Link, Singapore 637371