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DTSTART;TZID=America/Los_Angeles:20261021T160000
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SUMMARY:Weston T. and Sheila Borden Endowed Lecture in Theoretical Chemistry: Dr. Ned Sibert
DESCRIPTION:Event interval: Single day eventCampus room: TBDAccessibility Contact: chem59x@uw.eduEvent Types: Lectures/SeminarsEvent sponsors: This lecture is supported by the Weston and Sheila Borden Endowed Fund in Chemistry\, established by the Bordens in 2015. \nWeston T. Borden served on the University of Washington chemistry faculty for 31 years. His research involved the use of molecular orbital (MO) theory and MO-based calculations to understand and predict the structures and reactions of organic and organometallic molecules. Sheila Borden received her B.Sc. and Ph.D. degrees in chemistry from the University of Newcastle upon Tyne. After a year at the University of Oslo\, she joined the staff of the Royal Society of Chemistry\, where she eventually became managing editor of the RSC’s organic chemistry journals. In 2004\, she moved to the University of North Texas to lead the JACS Editorial Office.Link: https://sibert.chem.wisc.edu/ \nWeston T. and Sheila Borden Endowed Lecture in Theoretical Chemistry \n“Title TBD”Professor Ned Sibert  – Department of Chemistry\, University of WisconsinHost: Anne McCoy
URL:https://www.quantumx.washington.edu/calendar/weston-t-and-sheila-borden-endowed-lecture-in-theoretical-chemistry-dr-ned-sibert/
CATEGORIES:Chemistry
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DTSTART;TZID=America/Los_Angeles:20261119T123000
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SUMMARY:: Searching for chiral superconductors using ultrasound
DESCRIPTION:Speaker: Brad Ramshaw\, Cornell University\nFor more than a century\, superconductors have been the paradigmatic ‘quantum material’\, providing fundamental discoveries like gauge symmetry breaking and impacting technologies from medical imaging to quantum computing. Despite their central importance\, characterizing new types of superconductors is still a difficult task: all superconductors have zero resistance\, but their more subtle properties related to entanglement and topology are hard to probe experimentally. I will introduce chiral topological superconductors in two dimensions – a type of superconductivity with a ‘knot’ in the superconducting wave function. These superconductors can host Majorana edge modes and bound states in their vortex cores\, but finding a real-life example has proven challenging. I will show how we use ultrasound – deforming a crystalline lattice in a manner not unlike how gravity waves deform spacetime – to test whether a particular superconductor has the ‘right ingredients’ to be a 2D topological superconductor. I will present the progress we have made thus far – ruling out many proposed candidate materials and discovering an unexpected new type of superconductivity along the way. Most recently\, this has led us to the discovery of a multi-component superconducting state in UTe2 under hydrostatic pressure – a state that may indeed be topological. Finally\, I will give a prognosis for what I think the most promising route is for discovering a 2D topological superconductor.
URL:https://phys.washington.edu/events/2026-11-19/searching-chiral-superconductors-using-ultrasound#new_tab
LOCATION:PAT C520
CATEGORIES:Physics
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