2015年1月
Quantum entanglement of localized excited states at finite temperature
JOURNAL OF HIGH ENERGY PHYSICS
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- 巻
- 01
- 号
- 1
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1007/JHEP01(2015)102
- 出版者・発行元
- SPRINGER
In this work we study the time evolutions of (Renyi) entanglement entropy of locally excited states in two dimensional conformal field theories (CFTs) at finite temperature. We consider excited states created by acting with local operators on thermal states and give both field theoretic and holographic calculations. In free field CFTs, we find that the growth of Renyi entanglement entropy at finite temperature is reduced compared to the zero temperature result by a small quantity proportional to the width of the localized excitations. On the other hand, in finite temperature CFTs with classical gravity duals, we find that the entanglement entropy approaches a characteristic value at late time. This behaviour does not occur at zero temperature. We also study the mutual information between the two CFTs in the thermofield double (TFD) formulation and give physical interpretations of our results.
- リンク情報
- ID情報
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- DOI : 10.1007/JHEP01(2015)102
- ISSN : 1029-8479
- Web of Science ID : WOS:000349612200003