ABSTRACT
It has recently been predicted that two-dimensional electron gases possess an anomalous transport regime outside of the traditional collisionless and hydrodynamic limit. This anomalous regime is marked by the appearance of an odd-even effect where deformations of the Fermi surface with odd-parity become long-lived in comparison to even-parity ones. The presence of these odd-parity modes are notable in transverse probes of the fluid like the shear viscosity. Although this effect was first predicted in the context of electron hydrodynamics, this effect is general to fermionic systems in two dimensions. An important question is then whether ultracold quantum gases can be used to study the odd-even effect? In this talk I show how current experiments in harmonically trapped two-dimensional Fermi gases can exhibit the odd-even effect and I explain how it can be detected by examining the damping of collective oscillations.
BIOGRAPHY
Jeff Maki received his Ph.D. in 2019 from the University of British Columbia under the supervision of Fei Zhou, where he investigated non-relativistic conformal symmetry and dynamics. From 2019 to 2022, he was a postdoctoral researcher at the University of Hong Kong, working with Shizhong Zhang on the transport properties of spin-polarized Fermi gases. He then joined the Pitaevskii BEC Center in Italy as a postdoctoral fellow from 2022 to 2024, focusing on disordered Bose gases and open, lossy quantum systems. Since 2024, he has been a postdoc at the University of Konstanz, where his research explores electron hydrodynamics, quantum transport, and impurity dynamics in lossy atomic gases.
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