Author

Gerasimos Rigopoulos

Observed names: G I Rigopoulos, G. I. Rigopoulos, G. Rigopoulos, Gerasimos I Rigopoulos, Gerasimos I. Rigopoulos, Gerasimos Rigopoulos B, Rigopoulos G, Rigopoulos GI, Rigopoulos Gerasimos, Rigopoulos, G.I., Rigopoulos, Gerasimos

Institution: Newcastle University

Observed institutions: University of Helsinki, Utrecht University, Heidelberg University, University of Cambridge, Helsinki Institute of Physics, Technical University of Munich, Newcastle University, RWTH Aachen University

ORCID: 0000-0003-4284-4802

Observed ORCID: 0000-0003-4284-4802

OpenAlex ID: A5002643129

Separate universe approach and the evolution of nonlinear superhorizon cosmological perturbations

2003 · G. I. Rigopoulos, E. P. S. Shellard · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 198

Large non-Gaussianity in multiple-field inflation

2006 · G. I. Rigopoulos, E. P. S. Shellard, et al. · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 149

On the divergences of inflationary superhorizon perturbations

2008 · K Enqvist, S Nurmi, et al. · Journal of Cosmology and Astroparticle Physics · 130

Infrared correlations in de Sitter space: Field theoretic versus stochastic approach

2014 · Björn Garbrecht, Gerasimos Rigopoulos, et al. · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 116

Nonlinear perturbations in multiple-field inflation

2006 · G. I. Rigopoulos, E. P. S. Shellard, et al. · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 115

Quantitative bispectra from multifield inflation

2007 · G. I. Rigopoulos, E. P. S. Shellard, et al. · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 101

Feynman diagrams for stochastic inflation and quantum field theory in de Sitter space

2015 · Björn Garbrecht, Florian Gautier, et al. · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 93

Effective long wavelength scalar dynamics in de Sitter

2017 · Ian Moss, Gerasimos Rigopoulos · Journal of Cosmology and Astroparticle Physics · 74

Non-linear inflationary perturbations

2005 · G I Rigopoulos, E P S Shellard · Journal of Cosmology and Astroparticle Physics · 70

The subdominant curvaton

2009 · Kari Enqvist, Sami Nurmi, et al. · Journal of Cosmology and Astroparticle Physics · 63

Simple route to non-Gaussianity in inflation

2005 · G. I. Rigopoulos, E. P. S. Shellard, et al. · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 61

Self-regulation of infrared correlations for massless scalar fields during inflation

2011 · Björn Garbrecht, Gerasimos Rigopoulos · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 53

Decoherence from isocurvature perturbations in inflation

2007 · Tomislav Prokopec, Gerasimos I Rigopoulos · Journal of Cosmology and Astroparticle Physics · 49

Inflation is always semi-classical: diffusion domination overproduces Primordial Black Holes

2021 · G. Rigopoulos, A. Wilkins · Journal of Cosmology and Astroparticle Physics · 40

Parametric decay of the curvaton

2008 · K Enqvist, S Nurmi, et al. · Journal of Cosmology and Astroparticle Physics · 38

Path integral for inflationary perturbations

2010 · Tomislav Prokopec, Gerasimos Rigopoulos · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 35

Coherent and incoherent structures in fuzzy dark matter haloes

2023 · I-Kang Liu, Nick P Proukakis, et al. · Monthly Notices of the Royal Astronomical Society · 34

Supernovae data and perturbative deviation from homogeneity

2009 · Kari Enqvist, Maria Mattsson, et al. · Journal of Cosmology and Astroparticle Physics · 33

Functional renormalization group for stochastic inflation

2018 · Tomislav Prokopec, Gerasimos Rigopoulos · Journal of Cosmology and Astroparticle Physics · 32

Zel’dovich approximation and general relativity

2012 · Cornelius Rampf, Gerasimos Rigopoulos · Monthly Notices of the Royal Astronomical Society Letters · 29

On second-order superhorizon perturbations in multifield inflationary models

2004 · Gerasimos Rigopoulos · Classical and Quantum Gravity · 29

Gauge invariance and non-Gaussianity in inflation

2011 · Gerasimos Rigopoulos · Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields · 28

ΔN and the stochastic conveyor belt of ultra slow-roll inflation

2021 · Tomislav Prokopec, Gerasimos Rigopoulos · Physical review. D/Physical review. D. · 25

Non-metric chaotic inflation

2012 · Kari Enqvist, Tomi Koivisto, et al. · Journal of Cosmology and Astroparticle Physics · 25

Fluctuations along supersymmetric flat directions during inflation

2012 · Kari Enqvist, Daniel G Figueroa, et al. · Journal of Cosmology and Astroparticle Physics · 24

Works count: 129

Citation count: 1,925

H-index: 24

I10-index: 37