Events

Title: Quantum Networks Abstract: I discuss a few ideas at the interface of network science and quantum physics. A key idea in this interface is the notion of a quantum walk, which is a generalization of a classical random walk. I will discuss the use of quantum walks to measure the importance (i.e., centrality) of…

Rui Sun, NC State University Title: Control Over Spin with Chirality Abstract: Spintronics, an emerging field at the intersection of condensed matter physics and materials science, harnesses the spin degree of freedom of electrons for novel electronic functionalities beyond conventional charge-based electronics, such as spin-orbit torque magnetic random-access memory (SOT-MRAM). In the last decade, a…

Dan Scolnic, Duke University Title: The Lingering Hubble Tension and New Puzzling Measurements of Dark Energy Abstact: The standard model of cosmology has passed every test over the last twenty years.  Yet it remains unsatisfactory, with 95% of the universe being dark components, whose nature we did not understand.  Now, there are possible 'cracks' in the…

Gleb Finkelstein, Duke University Title: Multiterminal Graphene-based Josephson Junctions — a Playground for Non-linear and Quantum Physics Abstract: Josephson junctions are at the heart of many quantum devices, including superconducting qubits. In the recently developed multi-terminal Josephson junctions, several superconducting contacts are made to a common non-superconducting region. It has been predicted that these devices…

Kim Venn, University of Victoria Title: Exploring the Faintest Milky Way Satellites Abstract: Star clusters and dwarf galaxies are known to cohabit the outer Milky Way halo, occasionally as tidally disrupted streams. It is useful to distinguish these objects, as the "ultra faint" dwarf galaxies probe the low mass end of the dark matter halo…