Wei-Chi Chiu, Ph.D.

I am a postdoctoral research associate in the physics department at Northeastern University, working with Prof. Arun Bansil. My research focuses on quantum materials, particularly topological materials, strongly correlated systems, and their applications.

My research interests span a broad range of topics in condensed matter physics, including

• Topological Materials & 2D Materials

• Strongly Correlated Systems

• Topological Batteries

• Novel Photoemission

• Josephson Junctions Modeling

• Quantum Computing, Algorithms and Architectures

• Machine Learning and AI applications

A key highlight of my research is the introduction of causal structure concepts into condensed matter physics, which extends the understanding of cause-and-effect relationships beyond spacetime to energy-momentum space. This work, published in Nature Communications, provides new insights into topological phase transitions in interacting Weyl systems, helping to bridge the gap between condensed matter and quantum information science.

Another significant contribution, published in Nature, is the discovery of anomalous coherent secondary photoemission in SrTiO₃. This work revealed unexpected photoemission properties, including discrete spectra with negative electron affinity and unprecedented electron beam coherence, challenging conventional theories and opening new possibilities for high-efficiency photocathodes in quantum technologies.

In recognition of my academic excellence and contributions to research, I was honored as part of the prestigious Huntington 100 (2023), a distinction recognizing Northeastern’s most accomplished and innovative students for their leadership and impact in their respective fields.

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