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Tuesday, June 25, 2019 11:00 am - 11:00 am EDT (GMT -04:00)

Quantum Obvious Transfer using Coherent States

David Reichmuth, Heriot-Watt University

One-out-of-two (1-2) oblivious transfer is a cryptographic primitive, in which a sender holds two bits, x0 and x1, and a receiver receives one of them, in such a way that the receiver does not know both bits, and the sender does not know which bit the receiver obtained. While information-theoretical security for quantum versions of such protocols is not possible, it is of interest to examine possible security bounds, which previous work has shown to be set at 0.749 in “complete” protocols employing pure symmetric states.

Friday, July 12, 2019 11:45 am - 11:45 am EDT (GMT -04:00)

RAC1 Journal Club/Seminar Series

Academic Writing Workshop #3

Elisabeth van Stam (UW Writing and Communication Centre)

Join us for our ongoing writing series on clarity in scientific writing. During this session, we will cover theory and practical examples related to active vs. passive voice, verb tense in scientific writing, parallel structure and more.

Monday, July 15, 2019 2:30 pm - 2:30 pm EDT (GMT -04:00)

Topological Phases in Transition Metal Chalcogenides

Junwei Liu, Hong Kong University of Science and Technology

The discovery of quantum spin Hall effect engendered a new chapter of topological materials research in condensed matter physics and materials science. In this talk, I will introduce some of our recent theoretical works about the topological phases in 2D and 3D transition metal chalcogenides. We predict monolayer MX2 (M=Mo, W; X=S, Se, Te) of 1T’ structure could realize quantum spin Hall insulator.

Wednesday, July 17, 2019 1:30 pm - 1:30 pm EDT (GMT -04:00)

Dynamical phenomena in the electronic noise of a metallic wire

Bertrand Reulet, University of Sherbrooke

A metallic wire may seem to be the dullest conductor one can think of. With two experiments we will show that it may yet provide surprises ! First we consider how fast its noise, i.e. the variance of current fluctuations it generates, can respond to an ac excitation. We show that by answering this question one can extract the time constants of energy relaxation in the wire.