NIST researchers have developed a novel ion trap geometry that could revolutionize sensing and quantum communication technologies. The “stylus trap” can hold a single ion above a set of concentric cylinders, allowing unprecedented access to the trapped ion. This open trap geometry enables the ion to act as a highly sensitive probe for measuring very small forces, potentially making it millions of times more sensitive than current atomic force microscopes.
The stylus trap could also serve as an efficient interface for transferring individual light particles (photons) between an optical fiber and a single ion. This capability is crucial for long-distance quantum key cryptography (QKD), which provides secure communication channels. Additionally, the trap could be used to compare heating rates of different electrode surfaces, aiding in the development of ion-trap quantum computers.
The research was supported by the Intelligence Advanced Research Projects Activity and could lead to new applications in sensing, quantum communication, and quantum computing.
Source: https://www.nist.gov/news-events/news/2009/06/nist-develops-novel-ion-trap-sensing-force-and-light
Keywords: Ion, Trap, Quantum, Communications, Sensing
