Events

Select event types

November

| Event Location: Henn room 318, 6224 Agricultural Road

We show that when the bare cosmological constant in the Einstein field equations takes large negative values, the average distance between any two nearby geodesics moving in the spacetime sourced by quantum fields vacuum would gradually increase at a slow accelerating rate due to the weak parametric resonance effect caused by the fluctuations of the quantum vacuum energy density. In this scenario, the extreme fine-tuning of the cosmological constant is not needed.

Subscribe to daily event email notifications

Add to Calendar 2018-11-14T13:00:00 2018-11-14T14:00:00 Extreme fine-tuning of the cosmological constant is not needed We show that when the bare cosmological constant in the Einstein field equations takes large negative values, the average distance between any two nearby geodesics moving in the spacetime sourced by quantum fields vacuum would gradually increase at a slow accelerating rate due to the weak parametric resonance effect caused by the fluctuations of the quantum vacuum energy density. In this scenario, the extreme fine-tuning of the cosmological constant is not needed. Event Location: Henn room 318, 6224 Agricultural Road

November

| Event Location: Earth Sciences Building - RM 1013 (2207 Main Mall) UBC

The effort to design and build quantum computers in the laboratory is now a billion dollar enterprise. But might we, ourselves, be quantum computers? Most scientists think that in the warm wet brain, this is highly unlikely; and certainly it would be at variance with what the medical profession believes. My strategy is one of reverse engineering, seeking to identify the biochemical substrate and mechanisms that could host such putative quantum processing.

Subscribe to daily event email notifications

Add to Calendar 2018-11-14T19:30:00 2018-11-14T21:00:00 Are We Quantum Brains, or Merely Clever Robots? The effort to design and build quantum computers in the laboratory is now a billion dollar enterprise. But might we, ourselves, be quantum computers? Most scientists think that in the warm wet brain, this is highly unlikely; and certainly it would be at variance with what the medical profession believes. My strategy is one of reverse engineering, seeking to identify the biochemical substrate and mechanisms that could host such putative quantum processing. Event Location: Earth Sciences Building - RM 1013 (2207 Main Mall) UBC

November

| Event Location: Hennings 201

It is common to think of strains in solids in a somewhat passive sense, simply as the response of a material to external forces. However, for certain types of electronic order, strains of a specific symmetry can have much more important roles to play, acting as longitudinal, and even transverse, fields for the order parameter. In this talk, I will first describe how antisymmetric strain can act as a longitudinal field for electronic nematic order. I'll then go on to describe appropriate transverse fields for nematic order, including orthogonal antisymmetric

Subscribe to daily event email notifications

Add to Calendar 2018-11-15T16:00:00 2018-11-15T17:00:00 Feeling the strain: fields for electronic nematic order It is common to think of strains in solids in a somewhat passive sense, simply as the response of a material to external forces. However, for certain types of electronic order, strains of a specific symmetry can have much more important roles to play, acting as longitudinal, and even transverse, fields for the order parameter. In this talk, I will first describe how antisymmetric strain can act as a longitudinal field for electronic nematic order. I'll then go on to describe appropriate transverse fields for nematic order, including orthogonal antisymmetric Event Location: Hennings 201

November

| Event Location: BRIM 311

Subscribe to daily event email notifications

Add to Calendar 2018-11-16T10:00:00 2018-11-16T11:00:00 TBA Event Location: BRIM 311

November

| Event Location: Room 488, The Brimacombe Building, 2355 East Mall

Thesis Abstract:
In this thesis, I investigate the behavior of particles dressed by quantum field excitations and random interactions.

Subscribe to daily event email notifications

Add to Calendar 2018-11-16T12:30:00 2018-11-16T14:30:00 Final PhD Oral Examination (Thesis Title: “Peierls Bipolarons and Localization in Solid-State and Molecular Systems") Thesis Abstract:In this thesis, I investigate the behavior of particles dressed by quantum field excitations and random interactions. Event Location: Room 488, The Brimacombe Building, 2355 East Mall

November

| Event Location: TRIUMF Conference Room

The non-zero mass of neutrinos suppresses the growth of cosmic structure on small scales. Since the level of suppression depends on the sum of the masses of the three active neutrino species, the evolution of large-scale structure is a promising tool to constrain the total mass of neutrinos and possibly shed light on the mass hierarchy. I will discuss recent progress and future prospects to constrain the neutrino mass sum with cosmology.

Subscribe to daily event email notifications

Add to Calendar 2018-11-19T13:00:00 2018-11-19T14:00:00 Cosmology with Massive Neutrinos The non-zero mass of neutrinos suppresses the growth of cosmic structure on small scales. Since the level of suppression depends on the sum of the masses of the three active neutrino species, the evolution of large-scale structure is a promising tool to constrain the total mass of neutrinos and possibly shed light on the mass hierarchy. I will discuss recent progress and future prospects to constrain the neutrino mass sum with cosmology. Event Location: TRIUMF Conference Room

November

| Event Location: Hennings 318

Please join us before the Colloquium in Hennings 318 for coffee, tea and snacks at 2:45 pm

Subscribe to daily event email notifications

Add to Calendar 2018-11-19T15:00:00 2018-11-19T16:15:00 To be announced Please join us before the Colloquium in Hennings 318 for coffee, tea and snacks at 2:45 pm Event Location: Hennings 318

November

| Event Location: BRIM 311

Subscribe to daily event email notifications

Add to Calendar 2018-11-22T14:00:00 2018-11-22T15:00:00 TBA Event Location: BRIM 311

November

| Event Location: Hennings 201

My research program is motivated by fascination with bird flight. My laboratory group uses a multi- disciplinary approach that includes biomechanics, physiology, and neuroscience to examine flight ability. Our current research is organized around two topics: 1) how birds morph their wings and what benefits this provides; and 2) how optic flow signals are encoded in the avian brain and used to guide their flight. As we gain understanding of flight mechanisms, we further endeavor to apply comparative approaches that provide deeper insight into avian ecology and evolution.

Subscribe to daily event email notifications

Add to Calendar 2018-11-22T16:00:00 2018-11-22T17:00:00 Biomechanics and neural control of maneuvering flight My research program is motivated by fascination with bird flight. My laboratory group uses a multi- disciplinary approach that includes biomechanics, physiology, and neuroscience to examine flight ability. Our current research is organized around two topics: 1) how birds morph their wings and what benefits this provides; and 2) how optic flow signals are encoded in the avian brain and used to guide their flight. As we gain understanding of flight mechanisms, we further endeavor to apply comparative approaches that provide deeper insight into avian ecology and evolution. Event Location: Hennings 201

November

| Event Location: Hennings 318

Please join us for coffee, tea and snacks before the Colloquium in Hennings 318 at 2:45 pm

Subscribe to daily event email notifications

Add to Calendar 2018-11-26T15:00:00 2018-11-26T16:15:00 To be announced Please join us for coffee, tea and snacks before the Colloquium in Hennings 318 at 2:45 pm Event Location: Hennings 318

November

| Event Location: AMPL 311

In a recent paper, the MIT group led Pablo Jarillo-Herrero has found that doping twisted bi-layer graphene can generate strongly correlated insulating states and superconductivity at particular twist angles called magic angles.  

This problem has excited the condensed matter community because it establishes that graphene, normally viewed as a weakly  interacting system, is a new platform for strongly correlated physics.   

Subscribe to daily event email notifications

Add to Calendar 2018-11-29T14:00:00 2018-11-12T15:00:00 Moiré is Different: Wigner Solidification at Magic Angles in Doped Twisted bi-layer Graphene In a recent paper, the MIT group led Pablo Jarillo-Herrero has found that doping twisted bi-layer graphene can generate strongly correlated insulating states and superconductivity at particular twist angles called magic angles.   This problem has excited the condensed matter community because it establishes that graphene, normally viewed as a weakly  interacting system, is a new platform for strongly correlated physics.    Event Location: AMPL 311

November

| Event Location: Hennings 201

Subscribe to daily event email notifications

Add to Calendar 2018-11-29T16:00:00 2018-11-29T17:00:00 The Future of Cancer Medicine: Personal or Industrial? Event Location: Hennings 201

December

| Event Location: Hennings 318

Please join us for coffee, tea and snacks before the Colloquium in Hennings 318 at 2:45 pm

Subscribe to daily event email notifications

Add to Calendar 2018-12-03T15:00:00 2018-12-03T16:15:00 To be announced Please join us for coffee, tea and snacks before the Colloquium in Hennings 318 at 2:45 pm Event Location: Hennings 318

December

| Event Location: Hennings 201

Subscribe to daily event email notifications

Add to Calendar 2018-12-06T16:00:00 2018-12-06T17:00:00 The human voice, the erhu and the violin Event Location: Hennings 201