Infleqtion develops chip-scale optical cavity for quantum sensors

Louisville, Colorado - Infleqtion, a quantum computing and sensing company trading under the symbol INFQ, announced on Tuesday the creation of a miniaturized optical cavity for quantum sensors. This innovative development, unveiled in a press release, aims to shrink these instruments to handheld size, making them more portable and versatile.

The prototype was jointly crafted by Infleqtion, Honeywell Aerospace, and Professor Daniel J. Blumenthal from UC Santa Barbara. The optical cavity, a critical component stabilizing lasers in quantum computers, clocks, and sensors, is fabricated on a silicon nitride chip using processes similar to those in the semiconductor industry.

Traditional optical cavities are bulky, typically requiring tabletop setups, which hampers their field deployment and scalability. The chip-scale design leverages Honeywell Aerospace's decade-long advancements in silicon nitride photonic integration. Infleqtion, alongside UCSB's OCAQ Group led by Blumenthal, developed the technology, which can be mass-produced using current commercial facilities.

Potential applications for this technology include precise navigation and atomic timing for data centers and cell towers. The partnership was supported by the UCSB's Office of Technology & Industry Alliances, managing the intellectual property from university research. Infleqtion's quantum computing, networking, sensing, and security solutions utilize neutral atom technology, with clients including the U.S. Department of Defense, NASA, and the U.K. government.

This breakthrough builds upon the foundation laid by SiNoptiq, a photonic technology startup acquired by Infleqtion in 2024.