期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 1, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP01(2015)102
关键词
AdS-CFT Correspondence; Black Holes; Conformal Field Models in String Theory; Holography and condensed matter physics (AdS/CMT)
资金
- JSPS [25287058, 24654057]
- Swedish Research Council (VR) [2013-4329]
- World Premier International Research Center Initiative (WPI Initiative) from the Japan Ministry of Education, Culture, Sports, Science and Technology (MEXT)
- Science and Technology Facilities Council (STFC) [ST/J000329/1]
- STFC [ST/G000522/1, ST/J000329/1, ST/L000458/1] Funding Source: UKRI
- Grants-in-Aid for Scientific Research [24654057, 25287058] Funding Source: KAKEN
- Science and Technology Facilities Council [ST/J000329/1, ST/L000458/1, ST/G000522/1] Funding Source: researchfish
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.
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