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July

| Event Location: BRIM 311 | Speaker: Tarun Tummuru, SBQMI

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Of late, there has been a growing body of experimental work that brings us closer to an undoubted realization of Majorana fermions in condensed matter systems. In two-dimensions these quasiparticles arise as zero energy vortex bound states on the surface of a topological superconductor. And in the presence of a lattice of these vortices, interactions between these Majorana zero modes (MZMs) fall off exponentially with the superconducting coherence length. This motivates the construction of a tight-binding model to describe the low energy physics.

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Add to Calendar 2019-07-17T14:00:00 2019-07-17T15:00:00 Majorana-Hubbard Model on the Triangular Lattice Of late, there has been a growing body of experimental work that brings us closer to an undoubted realization of Majorana fermions in condensed matter systems. In two-dimensions these quasiparticles arise as zero energy vortex bound states on the surface of a topological superconductor. And in the presence of a lattice of these vortices, interactions between these Majorana zero modes (MZMs) fall off exponentially with the superconducting coherence length. This motivates the construction of a tight-binding model to describe the low energy physics. Event Location: BRIM 311

July

| Event Location: Brimacombe 311 | Speaker: Prof. Shigeki Miyasaka, Department of Physics, Osaka University, Japan

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In one of 1111-type iron-based superconducting (SC) system LaFeAsO, the electron doping level and the local crystal structure can be controlled by the F/H substitution for O and P for As.

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Add to Calendar 2019-07-18T14:00:00 2019-07-18T15:30:00 CM Seminar: Three superconducting phases of 1111-type iron-based superconductor RFeAs1-xPnxO1-y(F,H)y (R=La and Nd, Pn=P and Sb) In one of 1111-type iron-based superconducting (SC) system LaFeAsO, the electron doping level and the local crystal structure can be controlled by the F/H substitution for O and P for As. Event Location: Brimacombe 311

July

| Event Location: Room 309, Hennings Bldg | Speaker: EMILY ALTIERE

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Abstract:

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Add to Calendar 2019-07-19T10:00:00 2019-07-19T12:00:00 Departmental Oral Examination (Thesis Title: "High Resolution Two-Photon Spectroscopy of 129Xe for Precision Optical Magnetometry") Abstract: Event Location: Room 309, Hennings Bldg

July

| Event Location: UBC Sage Restaurant (Leon and Thea Koerner University Centre, 6331 Crescent Road Vancouver BC, V6T 1Z2) |

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A celebration of Don Witt's life will be hosted at the UBC Sage Restaurant (Leon and Thea Koerner University Centre, 6331 Crescent Road Vancouver BC, V6T 1Z2) on Monday, July 22, 2019 at 3pm. Please RSVP via the link below.

RSVP for Don Witt's Celebration of Life

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Add to Calendar 2019-07-22T15:00:00 2019-07-22T16:00:00 Don Witt Celebration of Life A celebration of Don Witt's life will be hosted at the UBC Sage Restaurant (Leon and Thea Koerner University Centre, 6331 Crescent Road Vancouver BC, V6T 1Z2) on Monday, July 22, 2019 at 3pm. Please RSVP via the link below. RSVP for Don Witt's Celebration of Life Event Location: UBC Sage Restaurant (Leon and Thea Koerner University Centre, 6331 Crescent Road Vancouver BC, V6T 1Z2)

July

| Event Location: Room 203, Graduate Student Centre (6371 Crescent Road) | Speaker: DOMINIK NEUENFELD

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Abstract:
We discuss applications of quantum information theoretic concepts to quantum gravity and the low-energy regime of quantum field theories.

The first part of this thesis is concerned with how quantum information spreads in four-dimensional scattering experiments for theories coupled to quantum electro- dynamics or perturbative quantum gravity. In these cases, every scattering process is accompanied by the emission of an infinite number of soft photons or gravi-tons, which cause infrared divergences in the calculation of scattering probabilities.

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Add to Calendar 2019-07-25T13:00:00 2019-07-25T15:00:00 Final PhD Oral Examination (Thesis Title: “Aspects of Quantum Information in Quantum Field Theory and Quantum Gravity”) Abstract: We discuss applications of quantum information theoretic concepts to quantum gravity and the low-energy regime of quantum field theories. The first part of this thesis is concerned with how quantum information spreads in four-dimensional scattering experiments for theories coupled to quantum electro- dynamics or perturbative quantum gravity. In these cases, every scattering process is accompanied by the emission of an infinite number of soft photons or gravi-tons, which cause infrared divergences in the calculation of scattering probabilities. Event Location: Room 203, Graduate Student Centre (6371 Crescent Road)

July

| Event Location: ISAC-II Room 223 (TRIUMF) | Speaker: ERICH LEISTENSCHNEIDER

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Add to Calendar 2019-07-29T08:00:00 2019-07-29T10:00:00 Departmental Oral Examination (Thesis Title: "Dawning of Nuclear Magicity in N=32 Seen Through Precision Mass Spectrometry") Abstract: Event Location: ISAC-II Room 223 (TRIUMF)

September

| Event Location: Hennings 201 | Speaker: Jason Barnes (U Idaho)

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NASA recently selected the Dragonfly quadcopter, on which I serve as Deputy Principal Investigator, as the fourth mission in its New Frontiers program of planetary missions.  Dragonfly will land on the surface of Saturn's hazy moon Titan to explore prebiotic chemistry, to evaluate its habitability, and look for chemical biosignatures.  Titan is one of just 4 planetary bodies that has both a thick atmosphere and a solid surface - Venus, Earth, and Mars are the others.

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Add to Calendar 2019-09-05T16:00:00 2019-09-05T17:00:00 Dragonfly: NASA's Rotorcraft Lander mission to Saturn's Moon Titan NASA recently selected the Dragonfly quadcopter, on which I serve as Deputy Principal Investigator, as the fourth mission in its New Frontiers program of planetary missions.  Dragonfly will land on the surface of Saturn's hazy moon Titan to explore prebiotic chemistry, to evaluate its habitability, and look for chemical biosignatures.  Titan is one of just 4 planetary bodies that has both a thick atmosphere and a solid surface - Venus, Earth, and Mars are the others. Event Location: Hennings 201