BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//INPA - ECPv6.8.3//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-ORIGINAL-URL:https://inpa.lbl.gov
X-WR-CALDESC:Events for INPA
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
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20250919T120000
DTEND;TZID=America/Los_Angeles:20250919T130000
DTSTAMP:20260421T044400
CREATED:20250915T160728Z
LAST-MODIFIED:20250915T160728Z
UID:2063-1758283200-1758286800@inpa.lbl.gov
SUMMARY:INPA Seminar Speaker: Yu-Han Tseng(Yale University) -Title: Search for dark matter scattering from optically levitated nanoparticles
DESCRIPTION:Date: September 19\, 2025 \nTime: 12:00 pm – 1:00 pm \nLocation: Sessler Conference Room – 50A-5132 [Hybrid and In-Person] \nSpeaker:  Yu-Han Tseng (Yale University) \nTitle: Search for dark matter scattering from optically levitated nanoparticles \nAbstract: The development of levitated optomechanics has opened up unique opportunities to search for new physics whose weak interactions may have evaded existing sensors. I will describe an initial search for dark matter scattering based on optically levitated\, femtogram-scale nanoparticles. In ultra-high vacuum\, the force sensitivity of these levitated sensors is primarily limited by quantum measurement noise. For dark matter models that would primarily scatter from an entire nanoparticle (rather than a single nucleus or electron)\, this initial search can exceed the sensitivity of even large underground detectors. I will also describe how the inherent directional sensitivity of these sensors can be used to separate possible dark matter signals from backgrounds. Finally\, I will discuss how the techniques developed here can be extended to light dark matter searches and precision measurements of neutrinos. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95016696011?pwd=Tk1XOW1Xd3RYRnlsc2tEYmRWZlVVZz09 \nMeeting ID: 950 1669 6011 \nPasscode: 247722
URL:https://inpa.lbl.gov/event/inpa-seminar-speaker-yu-han-tsengyale-university-title-search-for-dark-matter-scattering-from-optically-levitated-nanoparticles/
END:VEVENT
END:VCALENDAR