Event Time: Thursday, May 30, 2024 | 11:00 am - 12:30 pm
Event Location:
HENN 318
Add to Calendar 2024-05-30T11:00:00 2024-05-30T12:30:00 Efficient field theories for big data experiments Event Information:   *This talk is presented live in HENN 318 and via Zoom: Meeting URL:     https://ubc.zoom.us/j/63645767535?pwd=ocFqc2BzhwbnSNoGY7iabbjlvxVXTM.1 Meeting ID:     636 4576 7535 Passcode:    147999  Bio:Dave Sutherland is a theoretical physicist. After completing his PhD in 2016 at the Cavendish laboratory in Cambridge, he worked as a postdoc in UC Santa Barbara, and a Marie Skłodowska-Curie COFUND fellow at INFN Trieste, before moving to Glasgow as a lecturer in 2022. He has worked on various aspects of model building, effective field theory, amplitudes, and their applications to phenomenology. Abstract:In particle physics, we have lots of data, but we are unsure exactly what to look for within it. I will show how simple principles from field and scattering theory can help guide this search, maximize our chance of a fundamental discovery, and guarantee that we understand the nature of electroweak symmetry breaking in the coming decades.  Links: See his University of Glasgow faculty webpage here: University of Glasgow - Schools - School of Physics & Astronomy - Our staff - David Sutherland Event Location: HENN 318
Event Time: Thursday, May 30, 2024 | 2:00 pm - 3:00 pm
Event Location:
MacLeod 3038 (https://maps.ubc.ca/?code=MCLD)
Add to Calendar 2024-05-30T14:00:00 2024-05-30T15:00:00 Next-Generation Microcombs for Compact Optical Frequency Division Systems Event Information: Dear colleagues,We invite you to the next SSCS Vancouver Seminar on Thursday, May 30th, at 2 pm by Prof. Kerry Vahala from Caltech. Kerry is a world authority on frequency combs. Please remember to mark your calendar! Abstract: Optical frequency division (OFD) enables transfer of stability from references such as atomic transitions and optical cavities to microwave and radio-frequency signals.  Enabled by self-referenced frequency combs, the most accurate clocks (optical clocks) and lowest phase-noise microwave signal sources are based upon this method. In recent years, a miniature chip-based comb (microcomb) is being studied for creation of compact OFD systems.  I will review the physical principles of microcomb operation along with recently demonstrated microcomb devices that mode lock by formation of femtosecond pulse pairs.  Finally, a high-performance microwave signal source is described wherein microcombs implement the method of 2-point OFD using a compact cavity reference.Biography: Kerry Vahala is Professor of Applied Physics at Caltech and holds the Jenkins Chair in Information Science and Technology. His research on chip-based high-Q optical resonators and related nonlinear optical devices has advanced miniature frequency and time systems, microwave sources, parametric oscillators, astrocombs and gyroscopes. Vahala also made early contributions to the subject of cavity optomechanics and demonstrations of chip-based devices to cavity QED phenomena. A member of the National Academy of Engineering and Fellow of the IEEE and Optica, he received the IEEE Sarnoff Medal for research on quantum-well laser dynamics, the Alexander von Humboldt award and MPQ Distinguished Scholar Award for work on ultra-high-Q optical microcavities, a NASA achievement award for application of microcombs to exoplanet detection, and the Optica Paul F. Forman Team Engineering Excellence Award for a 2-photon optical clock. Vahala is the Executive Officer of the Department of Applied Physics and Materials Science at Caltech.   Event Location: MacLeod 3038 (https://maps.ubc.ca/?code=MCLD)
Event Time: Wednesday, June 12, 2024 | 8:00 am - 5:00 pm
Event Location:
UBC Scarfe & HEBB buildings
Add to Calendar 2024-06-12T08:00:00 2024-06-14T17:00:00 Dawn VII Meeting (June 12-14) Event Information: We invite you to register for the Dawn VII meeting taking place right here on UBC campus in June, 2024.   Every 2-3 years, the community of physicists working with ground-based gravitational wave (GW) detectors holds a discussion-based “Dawn” meeting to plan for the future of the field.    This year the global ground-based GW community, including experts in GW detector technology, GW astrophysics, multi-messenger astronomy, cosmology, nuclear physics, and tests of general relativity, is converging in Vancouver: Blusson QMI is hosting the Dawn VII meeting June 12-13 in the Scarfe building: https://dawn7.phas.ubc.ca/   You can find a program outline here: https://dawn7.phas.ubc.ca/program/   Dawn VII will be a good introduction to challenges, opportunities, and relevant timescales for astrophysics, nuclear physics, and fundamental physics (including cosmology and tests of general relativity) we can achieve with future GW detectors, as well as the development of enabling detector technologies.    There will also be satellite workshops devoted to GW detector technology (including a workshop on thin-film coatings hosted in Brimacombe), multi-messenger astronomy with GWs, and machine learning for GW analysis (taking place in Hebb) on Friday June 14.    It should be a fun and engaging meeting - we encourage you to register! (Registration is $280, and the conference dinner in the Ponderosa Ballroom the evening of June 12 is $95.)   Best, Jess for the Dawn VII Local Organizing Committee  ------------------------------------------------- *We encourage you to register by May 8th   Event Location: UBC Scarfe & HEBB buildings