Selected Publications:

[1] H. Khodabakhshi, F. Shojai, and A. Shirzad, ``On the classification of consistent boundary conditions for f(R)-gravity,'' Eur. Phys. J. C 78, 1003 (2018) doi:10.1140/epjc/s10052-018-6494-5 [arXiv:1803.04306 [gr-qc]].

[2] H. Khodabakhshi, A. Shirzad, F. Shojai, R. B. Mann, ``Black hole entropy and boundary conditions,'' Phys. Rev. D 101, no. 12, 124007 (2020) doi:10.1103/PhysRevD.101.124007 [arXiv:2005.11697 [gr-qc]].

[3] H. Khodabakhshi, A. Giaimo, and R. B. Mann, ``Einstein Quartic Gravity: Shadows, Signals, and Stability,'' Phys. Rev. D 102, no. 4, 044038 (2020) doi:10.1103/PhysRevD.102.044038 [arXiv:2006.02237 [gr-qc]].

[4] H. Khodabakhshi, F. Shojai, ``Cosmic censorship conjecture in a general Kerr-Newman black hole,'' Annals Phys. 420, 168271 (2020) doi:10.1016/j.aop.2020.168271 [arXiv:2008.02358 [gr-qc]].

[5] H. Khodabakhshi and R. B. Mann, ``Gravitational Lensing by Black Holes in Einstein Quartic Gravity,'' Phys. Rev. D 103, no. 2, 024017 (2021) doi:10.1103/PhysRevD.103.024017 [arXiv:2007.05341 [gr-qc]].

[6] H. Khodabakhshi, H. L\"u, ``Classical holographic relations and alternative boundary conditions for Lovelock gravity,'' Phys.Rev.D 105 12, 124067 (2022) doi:10.1103/PhysRevD.105.124067 [arXiv:2203.08839 [hep-th]].

[7] H. Khodabakhshi, H. Lu, R. Q. Yang, ``Tightening the Penrose inequality,'' Sci. China Phys. Mech. Astron. 65, no.12, 120413 (2022) doi:10.1007/s11433-022-2016-3 [arXiv:2207.08833 [gr-qc]].

[8] H. Khodabakhshi, H. Lu, R. B. Mann, ``On the Lagrangian holographic relation at $D \rightarrow 2$ and 4 limits of gravity,'' Phys. Lett. B 838, 137673 (2023) doi:10.1016/j.physletb.2023.137673 [arXiv:2210.11028 [hep-th]].

[9] H. Khodabakhshi, F. Shojai, H. Lu, ``Cosmological Time Crystals from Gauss-Bonnet Gravity in Four Dimensions,''  JCAP 06 002 (2024) doi:10.1088/1475-7516/2024/06/002 [arXiv:2311.15272 [gr-qc]].

[10] H. Khodabakhshi, M. Farhang, H. Lu, ``Observational Feasibility of 4D Einstein-Gauss-Bonnet Cosmology: Bouncing and Non-Bouncing Universes,''JCAP 05 024 (2024) doi:10.1088/1475-7516/2024/05/024 [arXiv:astro-ph.CO/2401.11732].

[11] H. Khodabakhshi, M. Farhang, F. Shojai, H. Lu, ``Cosmology with Higher-Derivative Gravities,'' Phys.Rev.D 110 6, L061504 (2024) doi:10.1103/PhysRevD.110.L061504 [arXiv:2405.02879 [gr-qc]].

[12] Peng-Yu Wu, H. Khodabakhshi, H. Lu, ``Weak Cosmic Censorship Conjecture Cannot be Violated in Gedanken Experiments,''  Phys.Rev.D 110 10, 104019 (2024) doi:10.1103/PhysRevD.110.104019 (2024) [arXiv:2408.09444 [gr-qc]].