Prof. Zhang and Berkeley team's work in Nature Nanotechnology demonstrates a three-qubit quantum register in silicon photonics. We integrated T centers into photonic waveguides and achieved entanglement between nuclear spins with long coherence times, showing promise for quantum communication networks. π
2025-12-09
We wrapped up 2025 with a wonderful group dinner to celebrate a year of hard work, creativity, and teamwork. Huge thanks to every member for the dedication and resilience that made this year a success. We are proud of what we built together and excited to carry this momentum into the new year. Looking forward to an even stronger 2026! π₯β¨
2025-12-18
Prof. Zhang and Berkeley team's work in PRX Quantum explores the stability of T centers in silicon photonic cavities. We show that their emission remains stable for milliseconds in the dark, but laser light itself drives spectral diffusion. These insights point to strategies for producing indistinguishable photons, a key step toward scalable quantum networks. π
2025-09-16
Weβre excited to welcome new members to the Zhang Lab this summer and fall! π Joining us are postdocs Ahmed Shariful Alam and Dongseob Kim, PhD student Jaewon Jung, masterβs students Chennan (Leo) He and Ken Loong Oi, and undergraduate researchers Benjamin Proothi and Shawn Hans Kathuria. Thrilled to have you all on board as we start an exciting new semester of research and discovery!
2025-09-01
Prof. Zhang and Berkeley team's work in Optica demonstrates bus-coupled silicon photonic cavities hosting T centers. We show frequency-multiplexed operation and hybridized cavity modes, pointing to scalable routes for entanglement distribution in quantum networks. π
2025-08-26
Prof. Zhang has been named a Scialog Fellow in Quantum Matter and Information π. This program brings together early-career researchers across physics, chemistry, materials science, and engineering to spark new collaborations and tackle fundamental questions in quantum science and technology.
2025-07-01
PI: Xueyue (Sherry) Zhang
Email: zhang.xueyue@columbia.edu
We are located in the Schapiro Center for Engineering and Physical Science Research (CEPSR) at Columbia University.
530 W 120th St, New York, NY 10027