Handhika S. Ramadhan, Ph.D was born in Jakarta, July 10 1983. He received his bachelor in physics from Universitas Indonesia (UI) in 2005. He pursued his doctoral study in theoretical physics at Tufts University in Medford, Massachussetts, USA, and obtained his PhD in 2011 with the dissertation title “Higher-dimensional topological defects in cosmology” under the supervision of Prof. Jose Juan Blanco-Pillado.

After a temporary appointment at Indonesian Institute of Sciences (LIPI), since 2013 Dr. Ramadhan has been a permanent faculty member at the Department of Physics at UI. His research interests include: topological defects and instantons in cosmology, modified gravity theories, classical and quantum aspects of black holes, and semiclassical gravity in compact objects.

**Teaching:**

- Mathematical Methods in Physics
- Classical Mechanics
- Electrodynamics
- Relativistic Quantum Mechanics
- Group Theory in Physics
- Classical Field Theory and General Relativity

#### Selected Publications

- B. N. Jayawiguna, I. Prasetyo, A. Sulaksono, and H. S. Ramadhan,
*Ultracompact object within a nonlocal Tolman VII model*, Physical Review D**106**, 104020 (2022). - A. M. Kusuma, B. N. Jayawiguna, and H. S. Ramadhan,
*Thermodynamics of Eddington-inspired-Born-Infeld-AdS black holes with global monopole*, Physical Review D**104**, 124045 (2021). - A. S. Habibina, B. N. Jayawiguna dan H. S. Ramadhan,
*Bound orbits around charged black holes with exponential and logarithmic electrodynamics*, General Relativity and Gravitation**53**, 113 (2021). - I. Prasetyo, H. Maulana, H. S. Ramadhan, and A. Sulaksono,
*2.6M*⊙* Compact Object and Neutron Stars within Eddington-Inspired Born-Infeld Theory of Gravity*, Physical Review D**104**, 084029 (2021). - R. D. Lambaga, J. Kristiano, and H.S. Ramadhan,
*CdL Instanton in EiBI Gravity and the Failure of Thin-Wall Approximation*, Gravitation and Cosmology**27**, 143-151 (2021). - I. Prasetyo, H. S. Ramadhan, and A. Sulaksono,
*Ultra-compact objects from semi-classical gravity*, Physical Review D**103**, 123536 (2021). - A.S. Habibina and H. S. Ramadhan, Geodesic of nonlinear electrodynamics and stable photon orbits, Physical Review D
**101**, 124036 (2020). - Kristiano, R. D. Lambaga, H. S.Ramadhan,
*Coleman-de Luccia tunneling wave function*, Physics Letters B**796**, 225-229 (2019). - Byon N.Jayawiguna and Handhika S.Ramadhan,
*Charged black holes in higher-dimensional Eddington-inspired Born-Infeld gravity*, Nuclear Physics B**943**, 114615 (2019). - Reyhan D. Lambaga and Handhika S. Ramadhan,
*Gravitational field of global monopole within the Eddington-inspired Born-Infeld theory of gravity*, European Physical Journal C**78**, 436 (2018). - Handhika S. Ramadhan, Ilham Prasetyo, and Aulia M. Kusuma,
*Higher-dimensional black holes with Dirac-Born-Infeld (DBI) global defects*, General Relativity and Gravitation**50**, 96 (2018). - Prasetyo, I. Husin, A.I. Qauli, H.S. Ramadhan and A. Sulaksono,
*Neutron stars in the braneworld within the Eddington-inspired Born-Infeld gravity*, Journal of Cosmology and Astroparticle Physics**01**, 027 (2018). - Ilham Prasetyo and Handhika S. Ramadhan,
*Classical defects in higher-dimensional Einstein gravity coupled to nonlinear σ-models*, General Relativity and Gravitation**49**, 115 (2017). - Handhika S. Ramadhan,
*Some exact BPS solutions for exotic vortices and monopoles*, Physics Letters B**758**, 140 (2016). - I. Qauli, M. Iqbal, A. Sulaksono, H. S. Ramadhan,
*Hyperons in neutron stars within an Eddington-inspired Born-Infeld theory of gravity*, Phys.Rev. D**93**, 104056 (2016). - Prasetyo, H. S. Ramadhan,
*Gravity of a noncanonical global monopole: conical topology and compactification*, General Relativity and Gravitation**48**, 10 (2016). - Ardian Nata Atmaja, Handhika Satrio Ramadhan, Eduardo da Hora,
*A Detailed Study of Bogomol’nyi Equations in Two-Dimensional Generalized Maxwell-Higgs Model Using On-Shell Method*, JHEP**1602**, 117 (2016) [arXiv:1505.01241 (2015)]. - Handhika S. Ramadhan, Brian A. Cahyo, Muhammad Iqbal,
*Flux Compactifications in Einstein-Born-Infeld Theories*, Physical Review D**92**, 024021 (2015). - Ardian N. Atmaja and H. S. Ramadhan,
*On Bogomol’nyi Equations of Classical Solutions*, Physical Review D**90**, 105009 (2014).