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Paper   IPM / Particles / 14793
School of Particles and Accelerator
  Title:   Criticality in Third Order Lovelock Gravity and Butterfly effect
  Author(s):  Mohammad Majdzadeh Qaemmaqami
  Status:   Published
  Journal: Eur. Phys. J. C
  No.:  47
  Vol.:  78
  Year:  2018
  Supported by:  IPM
  Abstract:
We study third order Lovelock Gravity in D = 7 at the critical point which three (A)dS vacua degenerate into one. We see there is not propagating graviton at the critical point. And also we compute butter y velocity for this theory at the critical point by considering shock wave solutions near horizon, this is important to note that although there is no propagating graviton at the critical point, due to boundary gravitons the butter y velocity is non-zero. Finally we observe that butter y velocity for third order Lovelock Gravity at critical point in D = 7 is less than butter y velocity for Einstein-Gauss-Bonnet Gravity at critical point in D = 7 which is less than butter y velocity in D = 7 for Einstein Gravity, vE:H B > vE:G:B B > v3rd Lovelock B . Maybe we can conclude that with adding higher order curvature corrections to Einstein Gravity the butter y velocity decreases.

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