Joseph Taylor Graduate Student Fellowship
Vedika Khemani is a condensed matter theorist. Her research spans several topical and active areas of Condensed Matter Physics---the theory of topological phases, the role of entanglement in the quantum mechanics of many-body systems and the behavior of isolated quantum systems out of equilibrium. Her work has elucidated out of equilibrium behavior of systems near critical points including systems with topological order, established limits on the universality of the entanglement spectra of many-body quantum states and shown that large subsystems of even larger quantum systems can be described accurately by pure quantum states despite being entangled with their complements. Currently she is focused on better understanding the phenomenon of many-body localization in which certain quantum systems fails to obey statistical mechanics and are found generically in non-equilibrium states. Her work has elucidated ordering in such systems and established their surprising non-local response to local probes and she is engaged in developing computational tools to better understand their properties.
Jon Gudmundsson and Alexandra (Sasha) Rahlin share the inaugural award of the Joseph Taylor Graduate Student Fellowship. Jon and Alexandra work together and with colleagues on measuring and understanding the cosmic microwave background (CMB), the faint remnant radiation from the Big Bang. Their research uses the CMB to probe fundamental problems physics that blur the distinction between cosmology and particle physics. More specifically they work on SPIDER, a stratospheric balloon-borne millimeter wavelength polarimeter that is designed to image the temperature and polarization anisotropy in the CMB with unprecedented accuracy and sensitivity on scales larger than a half degree. SPIDER's primary goal is to measure or limit the presence of gravitation radiation generated in the very early universe. SPIDER is scheduled to fly from Antarctica on its maiden voyage in late 2013 or early 2014. In addition, both Jon and Alexandra work on the analysis of data from the HFI instrument aboard the Planck satellite. They are members of Prof. Jones's experimental cosmology group.