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Computer Science Department Colloquium
1/24/2019 10:30 am
Physics & Astronomy Bldg, Physics Lounge Rm. 330

Quantum Uncloneability and Quantum Protocols

Dr. Anne Broadbent, University of Ottawa, Canada

Faculty Host: Thu Nguyen & Zheng Zhang


The “quantum no-cloning theorem” is one of the simplest yet most profound results in quantum information. According to this theorem, it is not possible to perfectly copy an unknown quantum state. In this presentation, we will introduce the formalism that leads to quantum information and to the no-cloning theorem and we will discuss some of the amazing consequences of this theorem, such as unforgeable quantum money and perfectly secure quantum communications. As a second related topic, we will discuss the availability of cloud quantum computing infrastructures and how to achieve privacy and verifiability in this scenario.


Dr. Anne Broadbent is an Associate Professor in the Department of Mathematics and Statistics at the University of Ottawa, Canada, where she holds the University Research Chair in Quantum Information Processing. Her research focuses on quantum complexity and cryptography and she is perhaps best known for her work on 'Blind Quantum Computing'. Dr. Broadbent was awarded the NSERC Doctoral Prize (2009), the John Charles Polanyi Prize in Physics (2010), the Ontario Early Researcher Award (2016) and the André Aisenstadt Mathematics Prize of the Centre de Recherches Mathématiques (2016). She is also a CIFAR Global Scholar Alumni and an affiliate member of the Perimeter Institute for Theoretical Physics, the Institute for Quantum Computing, and the Institut Transdiscliplinaire d'Informatique Quantique.