@ampolloreno.bsky.social
Reposted
By connecting broadband detection directly to the integrated quantum Fisher information (see our previous work: journals.aps.org/prapplied/ab...), we give a geometric explanation of the lower bound.
Opportunities and Limitations in Broadband Sensing
Detecting a signal at an unknown frequency is a common task, arising in settings from dark-matter detection to magnetometry. For any detection protocol, the precision achieved depends on the frequency...
journals.aps.org
January 28, 2026 at 7:06 PM
By connecting broadband detection directly to the integrated quantum Fisher information (see our previous work: journals.aps.org/prapplied/ab...), we give a geometric explanation of the lower bound.