Quantum Sensors Poised to Shrink to Handheld Size With New Prototype

Infleqtion, Honeywell Aerospace, and UC Santa Barbara have teamed up to develop a prototype that could revolutionize quantum sensors by shrinking them to handheld size. The key breakthrough is an integrated optical cavity fabricated on a silicon nitride chip at Honeywell Aerospace’s photonics foundry. This innovation reduces the space needed for laser stabilization, a critical component in quantum systems, and uses standard semiconductor manufacturing processes, making it scalable for commercial production.

Pranav Gokhale, CTO of Infleqtion, highlighted the importance of this development, stating that it brings quantum technology closer to being smaller, more stable, and manufacturable at scale. The collaboration combined academic research, advanced fabrication capabilities, and deep quantum systems knowledge to achieve this milestone. Near-term applications include quantum-enabled precision navigation and atomic timing for data centers and cell towers.

UC Santa Barbara’s role in this collaboration was facilitated by its Office of Technology & Industry Alliances (TIA), which manages intellectual property and establishes industry partnerships. The prototype was co-designed by Infleqtion’s engineering team and UCSB’s OCAQπ Group, led by Professor Daniel J. Blumenthal. This marks another step in their decade-long effort to miniaturize quantum systems from optical tables to chip scale.

Dennis Assanis, Chancellor of UC Santa Barbara, emphasized the power of collaboration in making quantum technology more accessible. The partnership between UCSB, Infleqtion, and Honeywell Aerospace exemplifies how fundamental science can transition into real-world applications, potentially impacting key industries globally.