A mathematical theory of the gapped/gapless boundaries of 2+1D topological orders

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• Liang Kong (International Quantum Academy)
• Monday 15 September 2025, 14:00-15:00
• Seminar Room 2, Newton Institute.

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BID - Quantum field theory with boundaries, impurities, and defects

In this talk, I will review the unified mathematical theory of the gapped and gapless boundaries of 2+1D topological orders developed in arXiv:1705.01087. I will also show that ideas of sandwich construction, SymTFT and topological holography are the consequences of this theory. 

This talk is part of the Isaac Newton Institute Seminar Series series.

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