IPM Positions

PostDoctoral Associate, School of Physics (2015 - 2018 )

Past IPM Positions

Student Researcher, School of Physics (2012 - 2015)

Research Interests

Quantum Gravity, Black hole Thermodynamics, Quantum Field Theory

Related Papers

1.	K. Hajian and A. Seraj Symplectic Structure of Extremal Black Holes ( In: Springer Proc.Phys.) [abstract] Code: IPM/P-2019/006

2.	K. Hajian, M.M. Skheikh-Jabbari and H. Yavartanoo Fluffing Extreme Kerr Phys. Rev. D 98 (2018), 026025  [abstract] arXive.org link: 1708.06378 [ abs, src, ps, others], cited by Code: IPM/P-2017/037

3.	D. Chernyavsky and K. Hajian Cosmological constant is a conserved charge Classical Quant. Grav. 35 (2017),   [abstract] Code: IPM/P-2017/049

4.	K. Hajian and M.M. Sheikh-Jabbari Redundant and Physical Black Hole Parameters: Is there an independent physical dilaton charge? Phys. Lett. B 768 (2017), 228-234   [abstract] Code: IPM/P-2016/062

5.	M. Ghodrati, K. Hajian and M.R. Setare Revisiting Conserved Charges in Higher Curvature Gravitational Theories Eur. Phys. J. C 76 (2016), 701  [abstract] Code: IPM/P-2016/020

6.	S. Aghapour and K. Hajian Black Hole Entropy from Entropy of Hawking Radiation J.Mod.Phys. 7 (2016), 2063-2070  [abstract] Code: IPM/P-2016/009

7.	K. Hajian Conserved charges and first law of thermodynamics for Kerr-de Sitter black holes General Relativity and Gravitation 48 (2016), 114  [abstract] Code: IPM/P-2016/004 Note: DOI: 10.1007/s10714-016-2108-4

8.	K. Hajian and M.M. Sheikh-Jabbari Solution Phase Space and Conserved Charges: A General Formulation for Charges Associated with Exact Symmetries Phys. Rev. D 93 (2016), 044074  [abstract] Code: IPM/P-2015/073

9.	F. Semih Dündar and K. Hajian Quantum Jump from Singularity to Outside of Black Hole JHEP 1602 (2016), 175  [abstract] Code: IPM/P-2015/013

10.	G. Comp\`{e}re, K. Hajian, A. Seraj and M.M. Sheikh-Jabbari Wiggling Throat of Extremal Black Holes JHEP 1510 (2015), 093  [abstract] Code: IPM/P-2015/032

11.	G. Compere, K. Hajian, A. Seraj and M.M. Sheikh-Jabbari Extremal Rotating Black Hole in the Near-Horizon Limit: Phase Space and Symmetry Algebra Phys. Lett. B 749 (2015), 443-447  [abstract] arXive.org link: 1503.07861v1 [hep-th] [ abs, src, ps, others], cited by Code: IPM/P-2015/002

12.	K. Hajian, A. Seraj and M.M. Sheikh-Jabbari Near Horizon Extremal Geometry Perturbations: Dynamical Field Perturbations vs. Parametric Variations JHEP 111 (2014), 10  [abstract] Code: IPM/P-2014/028

13.	K. Hajian, A. Seraj and M.M. Sheikh-Jabbari NHEG Dynamics: Laws of Near Horizon Extremal Geometry (thermo)Dynamics JHEP 1403 (2014), 014   [abstract] arXive.org link: 1310.3727 [ abs, src, ps, others], cited by Code: IPM/P-2013/033