Mathematical Physics and String Theory
print


Breadcrumb Navigation


Content

Dr. Andreas Pithis

Postdoc

Contact

Further Information

 

Personal presentation


Native Berliner, Andreas Pithis studied physics at the Technische Universität and Ludwig-Maximilians Universität München with stopovers at the Aristoteles University of Thessaloniki (Greece) and at Aix-Marseille University in the CPT at Luminy (France) supported by the Erasmus program. He worked briefly in science communication and scientific publishing before commencing his PhD research at King’s College London (UK) supported by a KCL scholarship under the supervision of Prof. Mairi Sakellariadou. During his PhD phase he was a frequent visitor of the Max-Planck-Institut für Gravitationsphysik (Golm) and held a visiting graduate fellowship at Perimeter Institute for Theoretical Physics, Canada. After completing his PhD, he worked as a PostDoc supported by a DAAD PRIME fellowship at the Universität Heidelberg (Germany) and the SISSA (Italy) under the supervision of Prof. Astrid Eichhorn and Prof. Roberto Percacci. He joined Dr. Daniele Oriti's research group at LMU in February 2021 and is supported by Dr. Oriti's DFG grant No 433545361.

His research interests focus on quantum geometry/gravity with applications to quantum black hole physics and quantum cosmology using loop quantum gravity (LQG) and group field theory (GFT). More recently, he is applying the functional renormalization group to explore the phase structure of discrete quantum gravity models (also with Lorentzian signature) in search for physical continuum phases therein.

Ongoing projects


Andreas currently works on the construction of causal tensor models for quantum gravity in 2+1 and 3+1 dimensions and the analysis of their phase structure using the functional renormalization group. Together with Luca Marchetti (LMU) and Dr. Oriti as well as Dr. Johannes Thürigen (WWU, Münster) he is also working on the exploration of the phase structure of GFT models for Lorentzian quantum gravity using statisticsal field theory methods.

Publications

  • L. Marchetti, D. Oriti, A. G. A. Pithis and J. Th\"urigen, Mean-field phase transitions in TGFT quantum gravity [arXiv:2211.12768 [gr-qc]]
  • L. Marchetti, D. Oriti, A. G. A. Pithis and J. Th\"urigen, Phase transitions in TGFT: a Landau-Ginzburg analysis of Lorentzian quantum geometric models [arXiv:2209.04297 [gr-qc]]
  • A. F. Jercher, D. Oriti and A. G. A. Pithis, Complete Barrett-Crane model and its causal structure, Phys. Rev. D 106, no.6, 066019 (2022) [arXiv:2206.15442 [gr-qc]]
  • A. F. Jercher, D. Oriti and A. G. A. Pithis, Emergent cosmology from quantum gravity in the Lorentzian Barrett-Crane tensorial group field theory model, JCAP 01, no.01, 050 (2022) [arXiv:2112.00091 [gr-qc]].


See inspire link:


https://inspirehep.net/authors/1274919?ui-citation-summary=true