Abstract: In recent years, the fields of natural language processing and computer vision have been revolutionized by the success of large models pretrained with task-agnostic objectives on massive, diverse datasets. This has, in part, been driven by the use of self-supervised pretraining methods which allow models to utilize far more training…
The search for low-dimensional topological superconductivity is fueled by the promise of new and exotic physics, such as chiral superconductivity and non-Abelian anyons. However, the need to break time-reversal symmetry, usually by applying a relatively large external magnetic field, has hindered the realization of these novel phases of matter…
A long standing problem in lattice QCD is to construct an explicit instanton density operator on the lattice. We introduce such a construction, after suitably refining the lattice Yang-Mills action, so that it captures the continuum Yang-Mills theory better than the traditional lattice Yang-Mills action does. This refinement needed follows…
In this talk, I present different machine learning and data driven techniques that produce measurements of stellar kinematics around the Milky Way, and relate them to our understanding of Dark Matter. More specifically, I will discuss a data driven technique applied to Gaia DR3 combined with Apogee data to produce the circular velocity…
Abstract: Black holes have not just become laboratories for astronomers, but also present some of the deepest unsolved problems in theoretical physics. During the past decade scientists learned that concepts from quantum information play a key role in understanding fundamental problems in gravity. In this talk I will explain some recent…
Abstract: Living systems sense their physical environment and process this information to interact back with the environment. This continual loop that iterates between sensing, computation and action drives the emergence of complex behaviors. Physics plays a key role in this sensorimotor loop by imposing constraints on all of its basic elements…
Experimental condensed matter research is undergoing a revolution. Before, the need for 3D crystalline samples with a given structure and doping set stringent requirements for realization of the desired properties. Now, it is possible to create tunable 2D samples in the lab, overcoming the previous limitations and speeding up the research. Here…
Abstract: In this talk, I will present local electronic compressibility measurements on a twisted transition metal dichalcogenide heterobilayer, which reveal a rich phase diagram of Hofstadter states and novel electron crystalline orders. We show that this reflects the coexistence of both flat and dispersive moiré bands whose…
Please join us Wednesday, March 23, 2022, at 12:00 noon for the webinar featuring Prof. Anna Balazs of The University of Pittsburgh.
Registration is required for this webinar: Registration form(link is external)
Registration is required. You can register using this form here(link is external).
All seminars are held on Wednesdays from 12:00 noon-1:00 p.m. in the Bowen Hall Auditorium Room 222. A light lunch is…
Like most physical systems, in active matter, the characteristics of interaction play an important role. For example, the extent of attraction can switch a collective of particles from a homogeneous mixture to phase-separated clusters. Further, particle concavity in shape-changing active systems can change…
Noble Liquid Time Projection Chambers are ubiquitously used in the field of rare events searches such neutrinoless double beta decay or dark matter. A detailed understanding of light and charge transport in liquid xenon or liquid argon is of the utmost importance when modeling the performance of these experiments. In this talk I will present…
Special seminar with Dicke fellowship candidate: Giovanni Scuri, Harvard University
Abstract: The twist degree of freedom provides a powerful tool for engineering the electrical and optical properties of van der Waals (vdW) heterostructures. In this talk, I will show how the twist angle between two…
Special seminar with Dicke fellowship candidate: Cheng Zang, Caltech University
The inflationary theory has been added into the picture of the well-established lambda cold dark matter (ΛCDM) standard model to explain the initial conditions of our universe. The quantum fluctuations in the early…
Please join us Wednesday, Nov. 10, 2021, at 12:00 noon in the Bowen Hall Auditorium for the next seminar of the PRISM/PCCM Fall ’21 Seminar Series featuring Prof. Christina Birkel of Arizona State University. A light lunch is provided at 11:30 a.m. in the Bowen Hall Atrium immediately prior to the seminar.
This is a hybrid event—for…
Abstract: The need to understand friction fundamentally at the microscale is increasingly important in technologies as diverse as soft robotics and consumer products. The first part of the talk focuses on the role of particle roughness in the rheology, structure, and dynamics of dense colloidal suspensions. Recent work from our group showed…
Registration is required. You can register for this webinar using this form here.
Abstract: Each individual is unique, yet pharmaceutical companies design the same…
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