Double local quenches in 2D CFTs and gravitational force

• Caputa, Pawel

• Numasawa, Tokiro

• Shimaji, Teppei

• Takayanagi, Tadashi

• Wei, Zixia

Abstract

In this work we extensively study the dynamics of excited states created by instantaneous local quenches at two different points, i.e. double local quenches. We focus on setups in two dimensional holographic and free Dirac fermion CFTs. We calculate the energy stress tensor and entanglement entropy for double joining and splitting local quenches. In the splitting local quenches we find an interesting oscillating behaviors. Finally, we study the energy stress tensor in double operator local quenches. In all these examples, we find that, in general, there are non-trivial interactions between the two local quenches. Especially, in holographic CFTs, the differences of the above quantities between the double local quench and the simple sum of two local quenches tend to be negative. We interpret this behavior as merely due to gravitational force in their gravity duals.

Journal

• Journal of High Energy Physics

  Journal of High Energy Physics 2019 (9), 018-, 2019-09

  Springer Science and Business Media LLC

Keywords

• AdS-CFT Correspondence
• Conformal Field Theory
• Holography and condensed matter physics (AdS/CMT)

Details

• CRID: 1050001339172029184
• NII Article ID: 120006773946
• ISSN: 10298479
• DOI: 10.1007/jhep09(2019)018
• HANDLE: 2433/245186
• Web Site: https://link.springer.com/content/pdf/10.1007/JHEP09(2019)018.pdf
• Web Site: https://link.springer.com/article/10.1007/JHEP09(2019)018/fulltext.html
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN