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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Andrew Scott


PIRSA:08100071  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Unitary design: bounds on their size
Speaker(s): Andrew Scott
Abstract: As a means of exactly derandomizing certain quantum information processing tasks, unitary designs have become an important concept in quantum information theory. A unitary design is a collection of unitary matrices that approximates the entire unitary group, much like a spherical design approximates... read more
Date: 27/10/2008 - 11:30 am

PIRSA:08080035  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Optimal linear tomography of quantum states and processes with tight POVMs
Speaker(s): Andrew Scott
Abstract: We introduce the concept of tight POVMs. In analogy with tight frames, these are POVMs that are as close as possible to orthonormal bases for the space they span. We show that tight rank-one POVMs define the exact class of optimal measurements for linear tomography of quantum states. In this setting... read more
Date: 25/08/2008 - 4:15 pm
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