Leadership

Dr Si-Hui Tan is the Chief Science Officer at Horizon Quantum, where she leads research development and helps to oversee the company’s daily operations. She joined Horizon Quantum shortly after its inception, driven by the ambition to make quantum computing a practical reality.

With more than two decades of experience in quantum information science, Si-Hui has published extensively in leading journals including Physical Review Letters and Physical Review X, as well as in major conference proceedings such as the IEEE Symposium on Information Theory.

Before joining Horizon Quantum, she worked as a research scientist at A*STAR’s Data Storage Institute, the Singapore University of Technology and Design, and the Centre for Quantum Technologies. She holds a PhD in physics from the Massachusetts Institute of Technology, where she pioneered applications of quantum illumination with Prof. Seth Lloyd, and a Bachelor of Science in physics from the California Institute of Technology.

Si-Hui was named to the SG100 Women in Tech list in 2021, and she was a 2025 SG Digital Leaders awardee. She is a member of the College Advisory Board of the College of Science at Nanyang Technological University.