When gases are cooled to temperatures approaching absolute zero, their atoms reach their lowest energy state, creating what is known as a quantum degenerate state. These gases are of interest for quantum sensors because they exhibit higher sensitivity to electric, magnetic, and gravitational fields compared to atoms at higher temperatures.

Researchers are developing quantum sensors that can measure gravitational acceleration with applications for geological surveying and space exploration, navigation in environments where GPS is unavailable, such as underwater or in remote terrestrial regions, as well as quantum computing. All of these applications could benefit from incorporation of quantum degenerate gases.

A significant challenge in utilizing quantum degenerate gases is that they are typically produced in discrete batches and are consumed or altered during the measurement process. This characteristic limits the ability to conduct studies that require high-frequency repetition for data validation.

Prof. Colombo has been awarded a $607,000 research grant from the Department of Defense to study more efficient methods for cooling atoms into a quantum degenerate state. The project focuses on a new preparation technique intended to reduce the time required to reach this state by approximately two orders of magnitude. This research seeks to address the current limitations regarding the speed and repetition of quantum gas production.

For more information about the research, check UConn Today article at Colder than Ice: Developing an Improved Quantum Degenerate Cooling Method – UConn Today