University of Calgary

Abstract: While quantum information theory is typically studied in the finite-dimensional regime, many real-world physical channels are best described in terms of continuous variables. The simplest such channels are gaussian bosonic channels, which...

Abstract: In this seminar, I will discuss novel experimental methods for optically studying spins in semiconductors. Ultrafast optical pump-probe measurement has emerged as a widespread and powerful technique for probing coherent spin phenomena in...

Abstract: What is the quantum state? There is no widely agreed answer to this question, despite the ubiquitous and crucial role this mathematical object plays in our lives. Two broad schools of thought can be identified. The "ontic view" is that the...

Abstract We will begin the proof of the existence of Weil groups in the local case, via relative Weil groups (or in other words, fundamental classes), following Serre's approach.

Following the last talk, in which we outlined the proof of the existence of the local fundamental class, we will now begin the proof in detail.

Abstract The study of numerical stability of algorithms for computing with polynomials and matrices over archimedian fields like R and C constitutes an entire branch of numerical analysis. The analogous problems over Qp have received far less...

Join Jean-François Biasse and other engaging members of the Calgary Number Theory association (CNTa) for a short reception in the Calgary cyberport, starting after the talk by Paul Buckingham and ending when the talk by David Roe begins.

The proof in detail, continued.

I will talk about various asymptotic results related to the title.

Abstract Since the early days of quantum mechanics, and still in Feynman's lectures on physics, interference between spatially separated trajectories of a single particle has not ceased to fascinate physicists. I will present a realization in optics...