Events

SBQMI hosts numerous academic and other events throughout the year. Please search by audience or event type, or enter a keyword, to find events of interest to you.

If you are interested in inviting our faculty as keynote speakers at your event, or are a school group interested in visiting our labs, please contact us to submit your request.

Fractional Solitons on the edge of the Fractional Quantum Hall states: Revealing topology through a non-linear dynamics

17 Mar2014

Speaker: Paul Wiegmann, Simon's Center, University of Chicago

Time: March 17, 2014 12:00 - 13:00

Location: Hennings 318

In the talk I argue that dynamics of Fractional Quantum Hall Edge states is essentially non-linear and that it features fractionally quantized solitons propagating along the edge. Observation of solitons would be a direct evidence of fractional charges. We show that the non-linear dynamics of the Laughlin’s FQH state is governed by the quantum Benjamin-Ono equation.

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Not of this Earth: the advent of neutrino astronomy

13 Mar2014

Speaker: Darren Grant, University of Alberta

Time: March 13, 2014 16:00 - 17:00

Location: Hennings 201

Scientists have created the world’s largest neutrino telescope, the IceCube Neutrino Observatory, in one of the planets most extreme environments at South Pole Station Antarctica. Instrumenting more than a Gigaton of ice, the observatory is designed to detect interactions of the highest energy neutrinos expected to be produced in the Universe’s most violent astrophysical processes. With IceCube’s recent announcement...

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Seeing is Believing: Direct Observation of the Wavefunction

13 Mar2014

Speaker: Jeff Lundeen, University of Ottawa

Time: March 13, 2014 12:30 - 14:00

Location: Hennings 201

Textbooks introduce the quantum wavefunction without really explaining what it is. Is it just a powerful abstract notion that we use for calculations? Is a particle’s wavefunction the shape of the particle? Does a single particle even have a wavefunction, or is it only something we should apply to collections of many particles? If you’re confused, you are not...

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Experimental review on the disordered-driven superconductor to insulator transition

10 Mar2014

Speaker: Daniel Sherman, Bar-Ilan University, Israel

Time: March 10, 2014 12:15 - 13:15

Location: AMPEL 311

The disorder-driven superconductor to insulator transition (SIT) is considered to be a prototype of a quantum phase transition at zero temperature. Lately, there has been a renewed interest in this field due to the experimental observations of a number of dramatic features near the SIT of amorphous superconducting materials such as indium oxide and niobium nitride. These novel features...

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Gas and Star Formation in Nearby Galaxies: New Results From the Herschel Space Observatory

06 Mar2014

Speaker: Christine Wilson, McMaster University

Time: March 6, 2014 16:00 - 17:00

Location: Hennings 201

The availability of new instruments and telescopes is making it possible to study large, well-selected samples of nearby galaxies at millimeter and submillimeter wavelengths. These observations trace the cold, dense gas and dust which is the fuel for star formation. I will discuss new results from the Herschel Space Observatory from the Very Nearby Galaxies Survey, which aims to...

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Production, Trapping and Spectroscopy of Antihydrogen – the ALPHA Experiment at CERN

27 Feb2014

Speaker: Walter Hardy, University of British Columbia

Time: February 27, 2014 16:00 - 17:00

Location: Hennings 201

This talk will be partly an update on the status of the ALPHA experiment at CERN, a collaboration of about 40 scientists, more than 1/3 from Canada, and partly a look back at how and why a condensed matter experimenter like myself got involved with antihydrogen research. ALPHA stands for Antihydrogen Laser Physics Apparatus: the goal is to compare...

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Magnetic and Charge-ordered phases in Sr3Fe2O7-x

18 Feb2014

Speaker: Darren Peets, Seoul University

Time: February 18, 2014 14:00 - 15:00

Location: AMPEL 311

We recently showed that the cubic perovskite SrFeO3, a rare Fe4+ (3d4) compound which exhibits several oxygen-ordered phases as the oxygen content is reduced from 3 to 2.5, hosts far more magnetic phases than previously imagined. Better control over oxygen content has also now been applied to the bilayer counterpart, insulating Sr3Fe2O7, of which far less is known. We...

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Does Protective Measurement Tell us Anything about Quantum Reality?

13 Feb2014

Speaker: Amit Hagar, Indiana University, History & Philosophy of Science department

Time: February 13, 2014 16:00 - 17:00

Location: Hennings 201

An analysis of the two routes through which one may disentangle a quantum system from a measuring apparatus, hence protect the state vector of a single quantum system, reveals that the argument from protected measurement to the reality of the state vector of a single quantum system is circular. Lessons on the available “interpretations” of quantum theory and on...

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Pursuing gravitational waves with Advanced LIGO

06 Feb2014

Speaker: Michael Landry (LIGO observatory), for the LIGO Scientific Collaboration

Time: February 6, 2014 16:00 - 17:00

Location: Hennings 201

The Laser Interferometer Gravitational Wave Observatory (or LIGO for short) will detect gravitational waves with second-generation interferometers. At the two observatory sites (Hanford WA and Livingston LA), we have been installing Advanced LIGO detectors since Oct 2010, and are nearing completion. Much work remains, including resonating light in all optical cavities (“first lock” of the interferometers), noise hunting, and...

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Symmetry protected topological orders in interacting bosonic and fermionic systems

03 Feb2014

Speaker: Zhengcheng Gu, Perimeter Institute

Time: February 3, 2014 12:00 - 13:00

Location: Hennings 318

Symmetry protected topological (SPT) states are bulk gapped states with gapless edge excitations protected by certain symmetries. The SPT phases in free fermion systems, like topological insulators, can be classified by the K-theory. However, it is not known what SPT phases exist in general interacting systems. In this talk, I will begin with a systematic way to construct SPT...

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