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Professor Mairi Sakellariadou

Maria Sakellariadou

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Telephone: 020 7848 1535

Office: S7.18

Research Group: Theoretical Particle Physics & Cosmology

Office Hours


Professor Mairi Sakellariadou gained her Bachelor Degree (B.Sc.) in Mathematics from the University of Athens. She then studied Astrophysics  at the Institute of Astronomy, University of Cambridge. She obtained a Certificate of Post-graduate Studies and a Master of Sciences (M.Sc.). During her stay in Cambridge, she was member of Trinity College and President of Post-graduate students.   She then continued her studies at Tufts University, in Massachusetts (USA). She obtained a Master in Sciences and a Doctor of Philosophy (Ph.D.) in Physics.  Since completing  her Ph.D, Professor Sakellariadou has held research positions at the Université Libre de Bruxelles, Université de Tours, Université Pierre and Marie Curie (Paris VI), Universität Zürich, Université de Genève, and CERN. She was Associate Professor at the University of Athens, before joining King’s in 2005 as a reader. She was appointed Professor of Theoretical Physics in 2011.


Professor Mairi Sakellariadou's field of research is theoretical physics and cosmology, with emphasis on the physics of the early universe. Her research stands at the interface between cosmology, theoretical particle physics and gravitational theories, testing the most advanced theories against the plethora of astrophysical, cosmological and high energy physics data. Her  research activity spans over the following directions:

  • Noncommutative Spectral Geometry;
  • String/M-theory Cosmology;
  • Loop Quantum Cosmology;
  • Group Field Theory;
  • Gravitational Waves;
  • Cosmic (super)strings

Her aim is to keep contributing to the collective scientific effort to uncover the early stages of the evolution of our universe and provide the means to test fundamental theories, using the early universe as our (unique) laboratory. 


Publications Repository

The full list of publications can be also found at:   



Some recent publications are:

1. Title: "Aspects of the Bosonic Spectral Action"

   Authors: M. Sakellariadou [arXiv:1503.01671[hep-th]]

  Invited talk in the Fourth Symposium on Prospects in the Physics of Discrete Symmetries, DISCRETE 2014

2. Title: "Zeta Spectral Action"

   Authors: Maxim A. Kurkov, Fedele Lizzi, Mairi Sakellariadou, Apimook Watcharangkool  

   [arXiv:1412.4669 [hep-th]] Phys. Rev. D 91, 065013 (2015)

3. Title: "Zipping and Unzipping in String Networks: Dynamics of Y-junctions"   

   Authors: A. Avgoustidis, A. Pourtsidou, M. Sakellariadou   

    [arXiv:1411.7959 [hep-th]] Phys. Rev. D 91, 025022 (2015)

4. Title: "Probing Models of Extended Gravity using Gravity Probe B and LARES experiments"    

    Authors: S. Capozziello, G. Lambiase, M. Sakellariadou, An. Stabile, Ar. Stabile 

    [arXiv:1410.8316 [gr-qc]] Phys. Rev. D 91, 044012 (2015)

5. Title: "Fourth order deformed general relativity" 

    Authors: Peter D. Cuttell, Mairi Sakellariadou 

    [arXiv:1409.1902 [gr-qc]] Phys. Rev. D 90, 104026 (2014)

6. Title: "Unweaving the Fabric of the Universe: The Interplay between Mathematics and Physics" 

    Authors:  Mairi Sakellariadou

    [arXiv:1407.3934 [gr-qc]] Invited contribution to the book entitled "Mathematical Structures of the Universe", edited by the Copernicus Center for Interdisciplinary Studies

7. Title: "On degenerate models of cosmic inflation" 

     Authors: Rhiannon Gwyn, Gonzalo A. Palma, Mairi Sakellariadou, Spyros Sypsas 

    [arXiv:1406.1947 [hep-th]] JCAP10(2014)005

8. Title: "The Physics Programme Of The MoEDAL Experiment At The LHC"

    Authors: B. Acharya, et al 

   [arXiv:1405.7662 [hep-ph] Int.J.Mod.Phys. A29 (2014) 1430050

9. Title: "How well do we understand the thermal history of the Universe? Implications of the recent BICEP2 data" 

    Authors:  Mairi Sakellariadou  

   [arXiv:1403.6688 [hep-th]] Phys. Rev. D 90, 087301 (2014)

10. Title: "Cusps and pseudo-cusps in strings with Y-junctions" 

     Authors: Thomas Elghozi, William Nelson, Mairi Sakellariadou 

    [arXiv:1403.3225 [hep-th]] Phys. Rev. D 90, 123517 (2014)

11. Title: "Spectral Regularisation: Induced Gravity and the Onset of Inflation"    

      Authors: Max A. Kurkov, Mairi Sakellariadou 

    [arXiv:1311.6979 [hep-th]] JCAP 01(2014)035

12. Title: "Inflation and cosmic (super)strings: implications of their intimate relation revisited" 

     Authors:  Mairi Sakellariadou 

    [arXiv:1308.6666 [hep-th]] Conference Series 544 (2014) 012027

13. Title: "Is F-term hybrid inflation natural within minimal supersymmetric SO(10)?" 

     Authors: Giacomo Cacciapaglia, Mairi Sakellariadou 

     [arXiv:1306.3242 [hep-th]] Eur.Phys.J. C74 (2014) 2779

14. Title: "Doubling of the Algebra and Neutrino Mixing within Noncommutative Spectral Geometry" 

     Authors: Maria Vittoria Gargiulo, Mairi Sakellariadou, Giuseppe Vitiello 

    [arXiv:1305.0659 [hep-th]] Eur. Phys. J. C (2014) 74:2695

15. Title: "Does Gravity's Rainbow induce Inflation without an Inflaton?"    

     Authors: Remo Garattini, Mairi Sakellariadou

     [arXiv:1212.4987 [gr-qc]] Phys. Rev. D 90, 043521 (2014)


PhD Students


Peta Cuttel
Marco de Cesare
‪Thomas Elghozi
‪Andreas Pithis
Apimook Watcharangkool 


Dr William Nelson (graduated in 2009) "Nelson:"Loop Quantum Gravity and String Theory in the Early Universe"

Dr Furqaan Yusaf (graduated in 2010) Yusaf: "Aspects of Modified Gravity: Testing MOND and TeVES with Astrophysical Data"

Dr Spyros Sypsas (graduated in 2014) Sypsas: "Theoretical and Observational Constraints on Brane Inflation and Study of Scalar Perturbations through the Effective Field Theory Formalism"

Phd Vacancies

Applications are invited for research in the Theoretical Particle Physics & Cosmology group.

To apply for the Physics MPhil/PhD please fill in an application form  Further details and guidelines can be found here.

All relevant information regarding eligibility, including academic and English language requirements, is available from the online prospectus.

Funding your PhD

We have several funded opportunities available. All eligible applications will be automatically considered for these award. There are a number of funding schemes available associated with different application deadlines and eligibility requirements. Please visit our 'Funding your PhD' webpage for further details.

For further details contact Professor Mairi Sakellariadou and or the Postgraduate Tutor Dr Cedric Weber.

PhD Projects

PhD projects are available within all areas of my research interests, namely within Noncommutative Spectral Geometry; String/M-theory Cosmology, Loop Quantum Cosmology, Group Field Theory, Gravitational Waves, and Cosmic (super)strings.

For further information, please contact   

Teaching Administrative roles in research

2014 on: Member (invited) of the Management Committee of the COST Action MP1405 “QSPACE”

2014 on : President (elected) of the Hellenic Society on Relativity, Gravitation and Cosmology (HSRGC)

2012 on: Member (invited) of the External Advisory Committee of the DFG Research Training group ``Models of Gravity'', Germany

2012 on: Member (invited) of the International Scientific Advisory Committee of the Annual International Conference on Mathematical Modelling in Physical Sciences

2012 on: Member (invited) of the Editorial Advisory Board of Classical & Quantum Gravity, IOP, U.K.

2010 – 2014: Vice-President (elected) of the Hellenic Society on Relativity, Gravitation and Cosmology

2010 – 2012: Principal Investigator of an STFC Research Council grant “Branes, Strings and Defects in Cosmology”, King’s College  London

2008 on: Member (invited) of the UK Cosmology Steering Committee

Recent conference/programme/workshop organisation

2014: Recent Developments in Gravity “NEB16” conference, 17-21 Sept, 2014 Mykonos, Greece

2014: “Quantum Cosmology” programme, 28 July – 1 Aug. 2014, Bad Honnef, Germany

2012: Developments in Gravity “NEB15” conference, 20-23 June, 2012 Crete, Greece

2012: “Perspectives of Fundamental Cosmology” programme, 5-30 Nov. 2012, NORDITA, Sweden

Outreach activities



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