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原文連結
論文資訊
- 類型：已發表論文
- 日期：2009
摘要
We investigate transitions between topologically ordered phases in two spatial dimensions induced by the condensation of a bosonic quasiparticle. To this end, we formulate an extension of the theory of symmetry-breaking 相變s which applies to phases with topological excitations described by 量子 groups or modular tensor categories. This enables us to deal with phases whose quasiparticles have noninteger 量子 dimensions and obey braid statistics. Many examples of such phases can be constructed from two-dimensional rational conformal field theories, and we find that there is a beautiful connection between 量子 group symmetry breaking and certain well-known constructions in conformal field theory, notably the coset construction, the construction of orbifold models, and more general conformal extensio
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