Condensed Matter Seminar: Mediated interactions of Bosons embedded in a Fermi gas
Prof. Cheng Chin, University of Chicago
Group seminar via Zoom
Monday, 08. March, 2021, 4pm (MEZ)
Particle exchange plays an essential role in the understanding of long-range interactions in high energy and condensed matter physics. Based on a Bose-Einstein condensate immersed in a degenerate Fermi gas, we observe boson-boson interactions mediated by fermionic excitations, which is the spinless analog of the Ruderman-Kittel-Kasuya-Yosida (RKKY) mechanism. Such interactions result in a wealth of novel phenomena including a drastic change of the boson ground state. New experimental tools and ideas to explore the quantum mixture will be described in the talk.