报告主题：Unitary t-designs and unitary t-groups
报告人：Eiichi Bannai 教授 （九州大学）
报告时间：2018年11月19日（周一）10:00
报告地点：校本部G507
邀请人：Mikio Nakahara
报告摘要：Unitary t-designs are finite subsets of the unitary group U(d) that approximate the whole U(d) well. The positive integer t measures how well they approximate. If a unitary t-design itself is a group, then it is called a unitary t-group. These concepts were first introduced in physics (quantum information theory). In this talk we give the complete classification of unitary t-groups in U(d) for all $t\geq 2$ and $d\geq 2$.
This talk is based on the preprint: Unitary t-groups, by Eiichi Bannai, Gabriel Navarro, Noelia Rizo and Pham Huu Tiep, arXiv:1810.02507.
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