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Past Events

Apr

23

Apr

16

Apr

9

Apr

2

Seminar

Physics Colloquium: “Unified theory of interacting Dirac fermions in two dimensions and the dark side of the Gross-Neveu model” Presented by Dr. Igor Herbut

Location:
LL 316
-
Gapless (or "massless") Dirac fermions appear as low-energy excitations in many condensed matter systems of recent interest.  They are often weakly interacting, as famously in graphene, but at stronger interactions they can also acquire a gap ("mass") and exhibit many ordered…

Mar

30

Mar

26

Mar

5

Feb

26

Feb

19

Feb

12

Seminar

Physics Colloquium: "Listening to the Heartbeat of a Weyl Semimetal: Berry Curvature and Anomalous Hall effect in MnBi2Te4" Presented by Dr. Jiun-Haw Chu - Washington University

Location:
LL 316
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The concept of Berry curvature - a geometric property of quantum wavefunctions - has revolutionized our understanding of condensed matter physics. In Weyl semimetals, points of singular Berry curvature (Weyl nodes) act as magnetic monopoles in momentum space, leading to exotic…

Feb

5

Jan

29

Seminar

Physics Colloquium: "Strategy configuration determines interaction patterns in partner-switching evolutionary games" Presented by Dr. Hsuan-Wei Lee - Lehigh

Location:
LL 316
-
According to prior research on partner-switching games, altering partners could stabilize cooperation. Yet the role of per-edge (interactive diversity, ID) vs. per-node (interactive identity, II) strategies under a single co-evolutionary rule remains deficiently understood. In this…