Speaker: Dr. Giuliano Giacalone
Title of Talk: Making a fluid particle by particle: emergent hydrodynamic behavior of few strongly-interacting fermions
Abstract: Our understanding of the applicability of fluid dynamics as an effective description of matter has been recently challenged by high-energy collider experiments where the signatures of a strongly-coupled quark-gluon plasma have been reported in collisions with protons or nuclei emitting only a few dozens of final-state particles. Here, we investigate the emergence of hydrodynamics in an ultra-cold Fermi gas in the regime of small particle numbers, by looking at the inversion of the initial aspect ratio (or elliptic flow) of systems released from an elliptical trap. Elliptic flow is demonstrated with as few as 10 strongly-interacting atoms, and in absence of any separation between microscopic and macroscopic scales typically required for a hydrodynamic description. I discuss ongoing efforts aimed at the understanding of these experimental observations.
Venue (HYBRID-EVENT): Goldene Box, Physikalisches Institut, INF 226, 69120 Heidelberg AND all talks will also be streamed via the permanent Zoom-link:
https://zoom.us/j/94602401603?pwd=SVRYMHQxaWJrUGtFWXRWdkFaKzJVUT09
Meeting ID: 946 0240 1603
Passcode: 386993
Time:
13:00 – 13:45 Talk
13:45-14:00 Questions & Discussion
14:00 Pizza & Drinks
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The main idea of the CRC 1225 Lunch Seminars is to bring together all scientists involved in our collaboration on a regular basis to allow exchange and discussion even outside one’s own research topics. We therefore invite all PIs and working group members of the CRC 1225 ISOQUANT to participate in the Lunch Seminars and to use this opportunity for getting to know each other, fruitful discussions and valuable exchange.