BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//UW QuantumX - ECPv6.17.0//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-ORIGINAL-URL:https://www.quantumx.washington.edu
X-WR-CALDESC:Events for UW QuantumX
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/Los_Angeles
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20250309T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20251102T090000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20260308T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20261101T090000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20270314T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20271107T090000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20261119T123000
DTEND;TZID=America/Los_Angeles:20261119T133000
DTSTAMP:20260708T162335Z
CREATED:20260629T225026Z
LAST-MODIFIED:20260708T162335Z
UID:11426-1795091400-1795095000@www.quantumx.washington.edu
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
END:VEVENT
END:VCALENDAR