Gravitational Physics Research Group

Group leader: László Árpád Gergely

Group members: Dánel Barta; Károly Csukás; Balázs Kacskovics; Róbert Kovács; István Rácz

Publications of the group members: link to the database of the Hungarian Scientific Bibliography

The research interest of the group lies in all aspects of gravitational phenomena, ranging across:

- fundamental and conceptual issues related to the gravitational interaction
- theoretical investigations with the methods of mathematical physics (initial value problem, spacetime singularities and symmetries), both in general relativity and in modified gravity theories
- numerical relativity (constraint solving methods, asymptotic behaviour of black holes, binary black hole initial data)
- cosmology (modified gravity effects in solving cosmological tensions, dark energy models)
- relativistic astrophysics (neutron stars and other compact objects, black hole accretion, jets and magnetic fields, high-energy cosmic particles, dark matter models, gravitational lensing)
- gravitational wave physics (waveforms, eccentric compact binary dynamics, spin and quadrupole effects, data analysis), through exact, post-Newtonian approximate or numerical methods, supported by algorithms and multi-core computer procedures on grid and GPU clusters
- gravitational wave detector site characterization (rock characteristics, thermo-mechanical coupling, Newtonian noises)

Research highlights: 2023; 2019-2022

Group memberships in international research networks:
 

Virgo Collaboration	Einstein Telescope (ET)	CA21136 - Addressing observational tensions in cosmology with systematics and fundamental physics (CosmoVerse)	CA23130 - Bridging high and low energies in search of quantum gravity (BridgeQG)	CERS - Central European Relativity Seminar on Mathematical Relativity
Dániel Barta Edit Fenyvesi Balázs Kacskovics	Dániel Barta Edit Fenyvesi László Árpád Gergely Balázs Kacskovics Róbert Kovács	László Árpád Gergely Balázs Kacskovics Tegze Tordai (student)	László Árpád Gergely	István Rácz
rapid response shifts, maintaining Wigner Virgo Tier 2 Computing Site	gravitational wave sources, detector site characterization	modified gravity effects in solving cosmological tensions	low-energy quantum gravity	forum for younger researchers to present their work
Webpage Group authorship in LIGO-Virgo-KAGRA collaboration papers	Birth of the ET Collaboration in Budapest Official facebook page	Webpage CosmoVerse webpage CosmoVerse Seminars	Webpage	Webpage 5th CERS, Budapest 2015 12th CERS, Budapest 2022

Past group members and researchers in gravitational physics at HUN-REN Wigner RCP:

Zoltán Perjés, Mátyás Vasúth, Béla Lukács, Ákos Sebestyén, László B. Szabados, Gyula Fodor, Merse Előd Gáspár, Viktor Czinner, Gergely Debreczeni, Péter Csizmadia, Balázs Mikóczi, József Zsigrai, János Kánnár, János Majár