Dr. Ioannis Antoniou


Personal Information


Research Interests

I grew up in a small village near the Uni. When I was young, I was watching the night sky, not only to count the stars. Thus, I studied Cosmology. The main topic of my research is the ΛCDM model and possible deviations and/or extensions of it. Modified theories of gravity and compact objects, such as gravastars are some of them.

Short Curriculum Vitae


2021 – present    Postdoctoral studies in Physics
                               Advisor: Prof. Leandros Perivolaropoulos
                               Department of Physics, University of Ioannina
2015 – 2019        Ph.D. in Physics
                               Ph.D. thesis: “Modern Theoretical Cosmological Models and
                               their Observational Predictions”
                               Supervisor: Prof. Leandros Perivolaropoulos
                               Department of Physics, University of Ioannina
2005 – 2008        M.Sc. in School of Science and Technology Physics
                               M.Sc. Thesis: “Cosmology of Multidimensional Field Theories”
                               Thesis Advisor: Prof. Kyriakos Tamvakis
                               Hellenic Open University
1989 – 1993        B.Sc. in Physics
                               Grade: 6.84/10.00
                               University of Ioannina


2010         14th Conference «Recent Developments in Gravity», Ioannina, Greece
2007         EEF conference, Corfu, Greece
2005         MEDEX’05, Corfu, Greece


1989 – 1993       Fellow of the Greek State Scholarships Foundation (IKY) for Undergraduate Studies.  


Greek       Native 

English    B2 Level

German   B2 Level

Computer Skills

Operating Systems     Windows 
Programming               Wolfram Mathematica
Applications                 Microsoft Office, LaTeX 

Work Experience

2004 – Present    Teaching at the 5th High School of Corfu, Ministry of Education
1998 – 2004         Physics Tutor 

Publication Record

For the full list of my publications please visit the inspirehep database.

Stabilizing Spherical Energy Shells with Angular Momentum in Gravitational Backgrounds
I. Antoniou, D. Kazanas, D. Papadopoulos and L. Perivolaropoulos
arXiv: 2204.14003

Hints for a gravitational constant transition in Tully-Fisher data
G. Alestas, I. Antoniou and L. Perivolaropoulos
Universe 7 (2021) 366
DOI: 10.3390/universe7100366, Supplemental Material

Spinning particle orbits around a black hole in an expanding background
I. Antoniou, D. Papadopoulos, L. Perivolaropoulos
Class.Quant.Grav. 36 (2019) 8, 085002
DOI: 10.1088/1361-6382/ab0fc1

Constraints on spatially oscillating sub-mm forces from the Stanford Optically Levitated Microsphere Experiment data
I. Antoniou, L. Perivolaropoulos
Phys.Rev.D 96 (2017) 10, 104002
DOI: 10.1103/PhysRevD.96.104002

Constraints on scalar coupling to electromagnetism
I. Antoniou
Grav.Cosmol. 23 (2017) 171
DOI: 10.1134/S0202289317020025

Propagation of gravitational waves in an expanding background in the presence of a point mass
I. Antoniou, D. Papadopoulos, L. Perivolaropoulos
Phys.Rev.D 94 (2016) 8, 084018
DOI: 10.1103/PhysRevD.94.084018

Geodesics of McVittie Spacetime with a Phantom Cosmological Background
I. Antoniou, L. Perivolaropoulos
Phys.Rev.D 93 (2016) 12, 123520
DOI: 10.1103/PhysRevD.93.123520

Dilatonic Topological Defects in 3+1 Dimensions and their Embeddings
N. Platis, I. Antoniou, L. Perivolaropoulos
Phys.Rev.D 89 (2014) 12, 123510
DOI: 10.1103/PhysRevD.89.123510

Searching for a Cosmological Preferred Axis: Union2 Data Analysis and Comparison with Other Probes
I. Antoniou, L. Perivolaropoulos
JCAP 12 (2010) 012
DOI: 10.1088/1475-7516/2010/12/012Supplemental Material