Location: Zoom https://harvard.zoom.us/j/779283357
Time: Tuesday, July 28, 2020, 10:00 AM (Eastern US), 16:00 (Central Europe), 22:00 (China)
Title: The Representation Theory of the Clifford Group, with Applications in Quantum Information
Abstract: The Clifford group is the most important set of quantum circuits that allow for an efficient classical description. It therefore forms an integral part of many protocols in quantum information, and it turns out that their properties can often be described in terms of representation-theoretic data. Motivated by these connections, we start our analysis by establishing an analogue of Schur-Weyl duality. As is the case for SW-duality between U(d) and St, the resulting description of the tth tensor power of the n-qubit Clifford group is independent of the number n of qubits! This uniform theory implies that, maybe surprisingly, several tasks in quantum information theory can be performed with a system-size independent amount of resources. Examples include: Testing whether an unknown state is a stabilizer state, and constructing unitary designs with few non-Clifford gates. arXiv:2002.09524, 1906.07230, 1712.08628.
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LOCATION:Zoom STATUS:CONFIRMED DTSTART:20200728T140000Z DTEND:20200728T140000Z END:VEVENT END:VCALENDAR