Host: Brian Camley Condensed Matter & Biological Physics Seminar: Nathan Belliveau (UW) Bloomberg Room 462
TITLE: Quantum Many-Body Topology in Mixed States ABSTRACT: The classification of gapped quantum phases in pure states has seen significant progress over the past decades, particularly with the identification of symmetry-protected topological (SPT) phases. While much has been understood about these phases in ideal, isolated systems at zero temperature, their behavior under non-ideal conditions—such as […]
TITLE: Exploring Weird Quasiparticles at the Heart of Quantum Matter (often using Extreme Magnetic Fields) ABSTRACT: Materials science has provided technologies to advance humanity through the millenia. In the wide range of modern materials grouped under the heading of “Quantum Matter”, electron charges and electron spins conspire in weird and collective ways to create new […]
Title: The unreasonable effectiveness of optical sum-rules in quantum many-body physics Abstract: Inspired by the discovery of a variety of correlated insulators in the moire universe, controlled by interactions projected to a set of isolated bands with a narrow bandwidth, we examine here a variety of partial optical sum-rules restricted to low-energies. Unlike standard […]
TITLE: Is an information viewpoint useful in condensed matter experiment? ABSTRACT: Some of the most significant developments in science concern information, from artificial intelligence to quantum computation and communications. In this regard there has long been a close connection between statistical mechanics and information theory. An interesting question then is whether we can use new […]