Department Colloquia

Cosmology, Cell Phones, and Video Games: Mapping Dark Energy with CHIME

Speaker: 
Keith Vanderlinde (U Toronto)
Event Date and Time: 
Thu, 2016-10-13 16:00 - 17:00
Location: 
Hennings 201
Local Contact: 
Douglas Scott

Among the great surprises of modern cosmology was th discovery of Dark Energy, which dominates the energy budget of the Universe and is driving the acceleration of its expansion rate. Decyphering its properties and nature will require novel measurements spanning vast swaths of the observable Universe.

What has the LHC taught us about the top quark?

Speaker: 
Alison Lister (UBC)
Event Date and Time: 
Thu, 2016-10-06 16:00 - 17:00
Location: 
Hennings 201

While the discovery of the Higgs boson in 2012 has completed the Standard Model of particle physics, there are still many open questions about the fundamental particles and forces, from the origin of dark matter through to the searches for new symmetries of nature, to name just a couple. The LHC is hoping to elucidate some of these mysteries. I personally believe that new physics will manifest itself in top quarks. Despite its discovery now over 20 years ago, it is only at the LHC that we can truly enter the era of precision measurements of the top quark.

Cosmology under a microscope: Watching the growth of topological defects across a quantum phase transition

Speaker: 
Cheng Chin (University of Chicago)
Event Date and Time: 
Thu, 2016-11-10 16:00 - 17:00
Location: 
Hennings 201
Local Contact: 
Fei Zhou
Intended Audience: 
Undergraduate

Our recent research tests an intriguing conjecture first proposed by T. Kibble in 1976 on the emergence of cosmic domains  in the early universe. In 1985, W. Zurek popularized this idea in the condensed matter community that the same mechanism generates topological defects form when a many-body system transpasses a symmetry breaking phase transition.

Beyond Fundamental Research, Why Physicists Excel in High Tech

Speaker: 
Moe Kermani (Vanedge Capital)
Event Date and Time: 
Thu, 2016-09-29 16:00 - 17:00
Location: 
Hennings 201
Local Contact: 
Douglas Scott
Intended Audience: 
Undergraduate

This talk will be focused on attributes that make physicists succeed in high tech, outside of fundamental research. There will be a discussion of trends that are driving massive talent shortages, and how skills acquired in the course of physics training enable graduates to fill the talent gap.

In Search of Dark Matter

Speaker: 
David Morrissey (TRIUMF)
Event Date and Time: 
Thu, 2016-09-15 16:00 - 17:00
Location: 
Hennings 201
Local Contact: 
Douglas Scott
Intended Audience: 
Undergraduate

Measurements of the Universe over very large distances suggest that it contains much more matter than can be accounted by conventional forms.  Little is known about what this "dark matter" might be.  In this talk I will discuss the evidence for the dark matter hypothesis, describe some of the most promising dark matter candidates, and explain how current laboratory experiments and astronomical observations are trying to identify it.  I will also describe how tests of dark matter could provide a window on new elementary particles and forces.

The Sudbury Neutrino Observatory: Observation of Flavour Change for Solar Neutrinos

Speaker: 
A. B. McDonald, Queen’s University, Kingston, Ontario for the SNO Collaboration
Event Date and Time: 
Tue, 2016-05-31 15:00 - 17:00
Location: 
Henn 201
Local Contact: 
Scott Oser
Intended Audience: 
Graduate

 

Imaging and Analysis of Quantum Materials using Low Voltage Electron Microscopy

Speaker: 
David C. Bell, Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138
Event Date and Time: 
Thu, 2016-03-17 16:00 - 17:00
Location: 
Hennings 201
Local Contact: 
Mark Halpern / Leanne Ebbs
Intended Audience: 
Public
Quantum materials are atomically layered materials such as graphene or hexagonal boron nitride (h-BN). Their properties differ strongly from those of their 3D bulk state. Depending on the composition, quantum materials may act as conductors, insulators, semiconductors or even as superconductors. Especially combinations of different quantum materials are of high interest to explore new phenomena and as the foundation for future electronic devices at the nanometer scale.

Waves, vortices and superfluids

Speaker: 
Frederic Chevy, ENS Paris and Ecole Polytechnique
Event Date and Time: 
Thu, 2016-04-21 16:00 - 17:00
Location: 
Hennings 201


In his famous lectures, R. P. Feynman highlights the deep unity of physics and the analogies existing between sometimes vastly different physical systems. In the same spirit I will demonstrate how the tools and concepts inherited from classical hydrodynamics can be used to explain the quantum world. As an example, I will show that the same phenomena govern the physics of water-walking insects and that of laser-cooled superfluid vapours.

Probing the Warped Side of our Universe with Gravitational Waves and Computer Simulations

Speaker: 
Kip Thorne, Cal. Tech.
Event Date and Time: 
Thu, 2016-04-14 16:00 - 17:00
Location: 
Hennings 201
Local Contact: 
Mark Halpern


A half century ago, John Wheeler challenged his students and colleagues to explore Geometrodynamics: the nonlinear dynamics of curved spacetime. They tried, and failed. Success eluded the relativity community until two new tools became available: computer simulations, and gravitational-wave observations. Thorne will describe what these have taught us, beginning with Choptuik’s critical collapse simulations in the 1990s, and concluding with LIGO’s recent observations of colliding black holes; and he will offer a vision for the future of Geometrodynamics.

Search for Space-Time Correlations from the Planck Scale with the Fermilab Holometer.

Speaker: 
Stephan Meyer, University of Chicago
Event Date and Time: 
Thu, 2016-04-07 16:00 - 17:00
Location: 
Hennings 201


I will describe the first results from a search for entangled exotic shear fluctuations which are postulated to exist in order to preserve holographic information bounds in a macroscopic system.  The instrument, constructed for this purpose, consists of  a pair of collocated, 39 m long, high-power Michelson interferometers operating at fundamental noise limited differential arm length sensitivity. The cross-correlated signal from the interferometers in a band from 1 to 10 MHz is used to exclude the shear-noise information bound model to 4.6 sigma significance.

Syndicate content
Website development by Checkmark Media. Designed by Armada.

a place of mind, The University of British Columbia

Faculty of Science
Department of Physics and Astronomy
6224 Agricultural Road
Vancouver, BC V6T 1Z1
Tel 604.822.3853
Fax 604.822.5324

Emergency Procedures | Accessibility | Contact UBC | © Copyright The University of British Columbia