FTNS vs. DDS (IMAGE) JILA Caption Comparison of two noise spectroscopy methods of qubit environments. The Sun group's FTNS significantly outperforms current DDNS methods. Credit Steven Burrows/Sun group Usage Restrictions Free to use with proper credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.