2014年8月
Quantum dimension as entanglement entropy in two dimensional conformal field theories
PHYSICAL REVIEW D
- ,
- ,
- ,
- 巻
- 90
- 号
- 4
- 開始ページ
- 041701
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevD.90.041701
- 出版者・発行元
- AMER PHYSICAL SOC
We study the entanglement entropy of excited states in two-dimensional conformal field theories (CFTs). In particular, we consider excited states obtained by acting on a vacuum with primary operators. We show that the entanglement entropy increases by a finite constant amount under its time evolution. Moreover, in rational conformal field theories, we prove that this increase of the (both Renyi and von Neumann) entanglement entropy always coincides with the log of the quantum dimension of the primary operator.
- リンク情報
- ID情報
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- DOI : 10.1103/PhysRevD.90.041701
- ISSN : 1550-7998
- eISSN : 1550-2368
- Web of Science ID : WOS:000341106500001