Thesis Defense: “Low-dimensional material device for atomic defect engineering, ionic and molecular transport"
Priyanka Jothi Thiruraman (University of Pennsylvania)
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High Energy Theory Seminar: Illuminating the Early Universe with Dark Matter Minihalos
Adrienne Erickcek (UNC)
As remnants of the earliest stages of structure formation, the smallest dark matter halos provide a unique probe of the evolution of the Universe prior to the onset of Big Bang nucleosynthesis (BBN…
Physics and Astronomy Colloquium: "Non-thermal pathways to quantum matter "
Martin Claassen (University of Pennsylvania)
Quantum materials host a wide range of phenomena that challenge our physical understanding while offering intriguing possibilities for next-generation technologies. A promising direction towards…
Mathematical Biology seminar: "Spinning helices, heaving panels, and waving tails: the role of flexibility in propulsion"
Lisa Fauci (Tulane University)
The observed gait of a swimmer arises from the interplay of internal force generation, the passive elastic properties of its body, and environmental features such as fluid viscosity, boundaries, and…
High Energy Theory Seminar: Entanglement entropies of equilibrated pure states and the origin of replica wormholes
Shreya Vardhan (MIT)
I will explain an approximation method that gives a simple universal expression for the Renyi entropies of an equilibrated pure state in a chaotic quantum many-body system. This expression is…
Astronomy Seminar: Speculating on the origin and future of FRBs
Liam Connor (Caltech)
Fast radio bursts (FRBs) are short-duration transients whose precise origins remain a mystery. A subset of FRBs is known to repeat; a subset of those appears to repeat in periodic activity windows.…
Mathematical Biology seminar: "Some PDEs in Evolution of Dispersal"
Adrian Lam (Ohio State University)
In the first part of the talk, we discuss the multi-species competition in a spatial domain, particularly the result of A. Hastings and some recent progress on the conjecture by Dockery…
High Energy Theory Seminar: Positivity with Gravity
Claudia de Rahm (Imperial College London)
In standard effective field theories, the notion of causality is intrinsically linked with that of subluminality and with a set of positivity constraints to be imposed on the low-energy scattering…
Mathematical Biology seminar: “Contracting ML and probabilistic methods for navigating time and space in genomics”
Richard Bonneau (Flatiron Institute)
I will describe new methods for spatial transcriptomics and spacial genomics and contrast these methods with previous single cell and longitudinal genomics analysis approaches. I will focus first on…
High Energy Theory Seminar: From SU(N) Seiberg-Witten Theory to Adjoint QCD
Emily Nardoni (UCLA)
Standard lore suggests that four-dimensional SU(N) gauge theory with 2 massless adjoint Weyl fermions ("adjoint QCD") flows to a phase with confinement and chiral symmetry breaking. In this talk, I will…