Department Colloquia

Towards designing and probing ultra-quantum matter

Speaker: 
Victor Gurarie (U of Colorado)
Event Date and Time: 
Thu, 2017-11-09 16:00 - 17:00
Location: 
Henning 201
Local Contact: 
Fei Zhou
Intended Audience: 
Undergraduate

Ultra-quantum matter is the proposed umbrella term to describe states of matter made of quantum particles with long range quantum entanglement among them. These states of matter lie outside the standard Landau classification of phases of matter by broken symmetries, where solid is distinct from liquid because its crystalline lattice breaks translational invariance. Typically ultra-quantum matter does not break any symmetries despite forming distinct phases of matter.

Novel Orbital Physics: Unconventional Bose-Einstein Condensation, Ferromagnetism, and Curie-Weiss Metal in Optical Lattices

Speaker: 
CongJun Wu (UCSD)
Event Date and Time: 
Thu, 2017-11-16 16:00 - 17:00
Location: 
Henning 201
Local Contact: 
Fei Zhou
Intended Audience: 
Graduate

Orbital is a degree of freedom independent of charge and spin. It plays an important role in physical properties of transition-metal-oxides including superconductivity and magnetism. The recent developments of optical lattices have opened up an opportunity to study novel features of orbital physics that are not easily accessible in solid state systems.

Einstein, Gravitational Waves and a New Science [note time and location]

Speaker: 
Barry Barish (Caltech)
Event Date and Time: 
Thu, 2017-11-30 17:30 - 18:30
Location: 
Hebb Theatre
Local Contact: 
Douglas Scott
Intended Audience: 
Undergraduate

Albert Einstein predicted the existence of gravitational waves 100 years ago, but the effects are so tiny that even Einstein thought they could never be detected. After 40 years of controversy, theorists finally developed a consensus that they really do exist. Then the problem became whether experimental physicists could develop instruments sensitive enough to actually detect them?

Nature’s all-in-one: gateable superconductivity in the strongly correlated topological insulator WTe2

Speaker: 
Josh Folk (UBC)
Event Date and Time: 
Thu, 2017-09-07 16:00 - 17:00
Location: 
Hennings 201
Intended Audience: 
Undergraduate

The success of graphene research over the past decade has demonstrated the power of transistor-type measurements in 2D materials to investigate novel electronic states of matter.  In graphene, table-top electrical measurements routinely probe collections of interacting relativistic particles, under easily tuneable conditions such as density, temperature, and magnetic field.  Over the past ten years, the palette of elements and compounds available to construct 2D materials has been expanded well beyond carbon, and the range of condensed matter phenomena available

Anomalous diffusion

Speaker: 
Martin Barlow (UBC Mathematics)
Event Date and Time: 
Thu, 2017-10-19 16:00 - 17:00
Location: 
Hennings 201
Local Contact: 
Douglas Scott
Intended Audience: 
Undergraduate

A random walk on a graph G has anomalous diffusion if the mean square deviation after n steps is sublinear in n. Systems that have, or are expected to have, anomalous diffusion include some regular exact fractals, and random graphs at their critical point. I will discuss these, and in particular what we know about diffusion on critical percolation, the uniform spanning tree, and random planar triangulations.

Repurposing a Spy Telescope for Studying Dark Energy and Exoplanets

Speaker: 
David Spergel (Princeton/CCA)
Event Date and Time: 
Thu, 2017-10-12 16:00 - 17:00
Location: 
Hennings 201
Intended Audience: 
Undergraduate

In 2025, NASA (hopefully with CSA as a partner) plans to launch WFIRST, the Wide Field Infrared Survey Telescope.  WFIRST is a 2.4-meter telescope with more than a 100 times the field of view of the Hubble Space Telescope.  WFIRST will fly with a wide field camera and a coronagraph.   The wide field camera is poised to make significant contributions to our understanding of dark energy and to carry out a diverse program of astrophysics.  The coronagraph should be able to obtain contrast ratios 1000x better than those previously achieved from space and characteriz

Lepton Universality violation, a promising approach towards new physics beyond the Standard Model

Speaker: 
Guy Wormser (LAL, Orsay)
Event Date and Time: 
Thu, 2017-09-28 16:00 - 17:00
Location: 
Hennings 201
Local Contact: 
Janis McKenna
Intended Audience: 
Undergraduate

The Standard Model of particle physics, one of the most remarkable theoretical construction of the XX century, has a very precise prediction power for all man-made experiments using accelerators. Although it is almost certain, for reasons that will be explained in this talk, that the SM is not the final theory, it resists up to now to all attempts to discover any deviation from its predictions that could show  the path towards a more complete theory.

A Capella Science: This is not a lecture!

Speaker: 
Tim Blais
Event Date and Time: 
Thu, 2017-04-06 19:00 - 20:30
Location: 
Woodward IRC 2
Local Contact: 
Douglas Scott
Intended Audience: 
Public

This isn't really part of the normal colloquium series, but a special end of term event in the evening of the last day of classes!  Tim Blais is an ex-graduate student in theoretical physics who has become a populariser of science.  His first "A Capella Science" video, "Rolling in the Higgs" has 800,000 Youtube hits and his most popular, "Bohemian Gravity", has about 3 million.  You can find 20 or so other videos by him on the A Capella Science Youtube Channel.  Bring family and friends to what will be a combination of science and entertainment!

Twisted: New Photonic Materials Inspired by Nature

Speaker: 
Mark MacLachlan (UBC Chemistry)
Event Date and Time: 
Thu, 2017-03-09 16:00 - 17:00
Location: 
Hennings 201
Local Contact: 
Douglas Scott

3-minute thesis talks

Speaker: 
Graduate students
Event Date and Time: 
Thu, 2017-03-02 16:00 - 17:00
Location: 
Hennings 201
Local Contact: 
Janis McKenna

This will be our Department's round of the annual "3MT" competition.  Several of our graduate students will try to motivate and summarise their research projects within the constraints of a 3-minute-long presentation using a single slide.  Come and support them!

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