Welcome to this issue of our newsletter, themed “Quantum Leap: Trailblazing Strides in Quantum Technology” and dedicated to the transformative field of quantum innovation. 

As we move further into this decade, quantum technology is redefining computation, communication and materials science. Advancing quantum research is essential—not only does it promise breakthroughs beyond those possible with classical computing, but it also enables ultra-secure encoding and strengthens cybersecurity. For Hong Kong, staying at the forefront of quantum innovation is key to maintaining its status as an international financial centre and for driving future competitiveness. Former Intel CEO Pat Gelsinger’s prediction that a quantum breakthrough could “pop the AI bubble” highlights the disruptive potential of this field.

With 2025 designated as International Quantum Year, the global spotlight is firmly on quantum research and its transformative possibilities. We are proud to celebrate The Hong Kong Polytechnic University (PolyU)’s achievement in completing Hong Kong’s first chip-based quantum network—a milestone that marks our commitment to pioneering quantum advancements. As we enter 2026, PolyU continues to push the boundaries of quantum exploration.

In this issue, our “Quantum Information” section explores the latest developments in quantum communication and computation. Featured articles focus on:

• Hong Kong’s first chip-based quantum network and testing
• an optimal control of flying qubits to enhance the fidelity of quantum networks
• insights into the micro-electro-quantum system and its impacts
• an exploration of the criteria for certifying quantum entanglements
• a novel algorithm and an integrated quantum photonic microprocessor chip for simulating molecular vibronic spectra

The “Quantum Materials” section highlights breakthroughs in materials science that underpin quantum advancements: 

• engineering high-performance 2D quantum materials for near-infrared nonlinear optics
• investigating the factors of extending spin coherence in metal halide perovskite nanomaterials
• computational insights to guide the synthesis of lead-free quantum materials with unprecedented luminescence

Our Engagement & Partnership section focuses on PolyU's recent engagement and innovation in quantum technology and related fields. Finally, the Student Corner section presents achievements of the University's research students and shines the spotlight on our students’ remarkable work showcased in competitions.

As quantum technology accelerates toward real-world impact, we hope this issue inspires curiosity and collaboration across disciplines. Thank you for joining us on this journey. Let us shape a future where quantum breakthroughs benefit society at large together.

Prof. Cheng DONG Chairman of the Editorial Committee Associate Vice President (Mainland Research Advancement) Chair Professor of Cell Engineering and ImmunoMedicine, Department of Biomedical Engineering