# Past Events

**Friday, December 14, 2018 - 6:00pm**

Duke Teaching Observatory

Observe the sky through modern 10" telescopes, guidedby Duke physicists. Everyone welcome. Weather dependent, check web page for weather updates.

**Thursday, December 6, 2018 - 11:30am**

Physics 298

**Speaker:**Luiz Henrique Bugatti Guessi (Universidade de Sao Paulo, Duke)

Bound states in the continuum (BICs) are states with localized wave-functions even though lying in the continuum. Here, we explore theoretically the emergence of BICs in a system comprising two identical quantum dots side-coupled to a quantum wire. The dots are symmetrically coupled to the site at... Read More »

**Tuesday, December 4, 2018 - 3:30pm**

Physics 298

**Speaker:**Natalia Tenorio Maia (University of Pittsburgh)

n order to detect and study the data encoded in a gravitational wave signal, it is necessary not only an extreme accurate experimental apparatus, but also an accurate theoretical description of the dynamics of the source and the radiation emitted by it. The inspiral stage of a binary system of... Read More »

**Tuesday, December 4, 2018 - 1:30pm**

Physics 298

**Speaker:**Dave Morrison

The detailed study of degenerations of K3 surfaces as complex manifoldsgoes back more than forty years and is fairly complete. Much less isknown about the analogous problem in differential geometry of findingGromov--Hausdorff limits for sequences of Ricci-flat metrics on the K3manifold. I will... Read More »

**Friday, November 30, 2018 - 1:15pm**

Teer 203

**Speaker:**Giulia Galli, University of Chicago & Argonne National Laboratory

I will discuss recent progress in predicting material and molecular properties from the basic principles of quantum mechanics, with specific examples on materials for energy conversion processes, and for quantum information science. I will also discuss some of the open challenges involved in... Read More »

#### TNT Colloquium: Exploring the inner structure of the nucleon using QCD factorization theorems [NCSU]

**Thursday, November 29, 2018 - 3:30pm**

Raleigh, NC

**Speaker:**Nobuo Sato *Special Date*

Over the last 30 years, significant work has been devoted to understand the structure of the nucleon in terms of its quarks and gluon degrees of freedom using QCD factorization theorems. In this talk I will give an overview of the subject and comment on existing challenges that can be addressed at... Read More »

**Thursday, November 29, 2018 - 11:30am**

Physics 298

**Speaker:**Arthur P. Ramirez (UC Santa Cruz)

Two topics will be discussed. The first addresses transport in undoped Weyl semimetals (WSMs). Despite their name and the behavior of most WSMs, these materials should exhibit "semiconducting" temperature dependent resistivity, drho/dT<0, when undoped. We show that this form is obeyed in the... Read More »

**Wednesday, November 28, 2018 - 3:30pm**

Physics 130

**Speaker:**Art Ramirez (UCSC)

"States of Space - Searching for a Quantum Spin Liquid"
Two-dimensional quantum spin liquids have been pursued since the 1980s. They are now thought to be potential hosts for non-Abelian excitations that could form the basis for topological quantum computation. The materials requirements for such... Read More »

**Friday, November 16, 2018 - 11:45am**

Hudson Hall 207

**Speaker:**Tom Driscoll

Phased-array antennas which electronically steer a narrow reconfigurable beam have been at the heart of high-performance radar for more than half-a-century. Unfortunately, the cost of phased array radars has historically restricted their use to high-end military applications. Now, Echodyne is... Read More »

**Thursday, November 15, 2018 - 11:30am**

Physics 298

**Speaker:**Fabio Altomare (D-Wave Systems)

D-Wave Systems builds superconducting quantum annealing processors that are primarily intended to be used for solving classical computation problems such as optimization and sampling. However, recent studies have shown how this computing platform can be used as a programmable quantum magnet that... Read More »