Tue February 21, 2023 4:00 pm
CUA Seminar – Christian Sanner: Testing fundamental symmetries and exploring collective atom-light interactions with optical atomic clocks
Location:Harvard Jefferson 250
Christian Sanner, JILA Boulder / CSU Fort Collins
Ten Minute Talk:"Multimode Programmable Coherent Control" by
Ian Christen
State-of-the-art optical atomic clocks enable frequency metrology at the 19th decimal place. Beyond keeping time, they find applications in low-energy tests of fundamental symmetries, and quantum engineering their clockwork opens new avenues for future quantum sensors. I will report on a recent test of special relativity with ytterbium ion optical clocks that led to hundredfold improved spacetime anisotropy limits. Then I will focus on experiments that leverage a degenerate Fermi gas optical clock platform to explore new ways to manipulate light scattering properties and to study the physics of a collective spin system with long-range interactions mediated by propagating photons.