We propose the modified version of the canonical energy which was introduced originally by Hollands and Wald. Our construction depends only on the Euler-Lagrange expression of the system and thus is independent of the ambiguity in the Lagrangian. After some comments on our construction, we briefly mention on the relevance of our construction to the boundary information metric in the context of the AdS/CFT correspondence. We also study the stability of three-dimensional hairy extremal black holes by using our construction.
Bibliographical noteFunding Information:
We would like to thank Nakwoo Kim for some discussion. S. H. was supported by the National Research Foundation of Korea (NRF) Grant No.NRF-2013R1A1A2011548. S. Y. was supported by the National Research Foundation of Korea (NRF) Grant No.NRF-2015R1D1A1A09057057. We are grateful to CERN for hospitality, and to CERN-Korea theory collaboration committee for supporting the workshop CERN-CKC TH Institute on Duality Symmetries in String and M-Theories
© 2016 American Physical Society.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)