Dr David Mulryne
Royal Society Universty Research Fellow | Reader in Theoretical Cosmology
School of Physical and Chemical Sciences
Queen Mary University of London
Queen Mary University of London
Research
Cosmology, Inflation, Primordial Black Holes, Modified Gravity
Interests
I work in the area of theoretical cosmology and gravity.Within cosmology, I’m interested in all aspects of the structure and evolution of the universe, from its earliest moments to its behaviour today, and in observations which inform us about the universe. Predominantly, however, I have worked on the very early universe, and in particular a phase of accelerated expansion known as inflation. Inflation is thought to be the origin of all structure in the universe, and so is a hugely important period in its history. Inflation and the phases which follow it can also give rise to gravitational waves and primordial black holes. I am interested in what we can learn about inflation and fundamental physics from these observable signatures.
Recently I have also developed an interest in modified gravity and black holes in modified theories.
Publications
Publications of specific relevance to the Centre for Fundamental Physics2024
Davies MW, Iacconi L and Mulryne DJ (2024). Numerical 1-loop correction from a potential yielding ultra-slow-roll dynamics. Journal of Cosmology and Astroparticle Physics, IOP Publishing vol. 2024 (04) 01-04-2024
2023
Iacconi L and Mulryne DJ (2023). Multi-field inflation with large scalar fluctuations: non-Gaussianity and perturbativity. Journal of Cosmology and Astroparticle Physics, IOP Publishing vol. 2023 (09), 033-033. 01-09-2023
Fernandes PGS and Mulryne DJ (2023). A new approach and code for spinning black holes in modified gravity. Classical and Quantum Gravity, IOP Publishing vol. 40 (16), 165001-165001. 11-07-2023
2022
Fernandes PGS, Mulryne DJ and Delgado JFM (2022). Exploring the small mass limit of stationary black holes in theories with Gauss–Bonnet terms. Classical and Quantum Gravity, IOP Publishing vol. 39 (23), 235015-235015. 14-11-2022
Davies MW, Carrilho P and Mulryne DJ (2022). Non-Gaussianity in inflationary scenarios for primordial black holes. Journal of Cosmology and Astroparticle Physics, IOP Publishing vol. 2022 (06), 019-019. 01-06-2022
Fernandes PGS, Carrilho P, Clifton T and Mulryne DJ (2022). The 4D Einstein–Gauss–Bonnet theory of gravity: a review. Classical and Quantum Gravity vol. 39 (6), 063001-063001. 28-02-2022
2021
Fernandes PGS, Carrilho P, Clifton T and Mulryne DJ (2021). Black Holes in the Scalar-Tensor Formulation of 4D Einstein-Gauss-Bonnet
Gravity: Uniqueness of Solutions, and a New Candidate for Dark Matter. Physical Review D: Particles, Fields, Gravitation and Cosmology, American Physical Society vol. 104 11-08-2021
Carrilho P, Mulryne D and Ronayne J (2021). Non-Gaussianity after many-field reheating. Physical Review D, American Physical Society (APS) vol. 103 (8), 083532-083532. 15-04-2021
2020
Clifton T, Carrilho P, Fernandes PGS and Mulryne DJ (2020). Observational constraints on the regularized 4D Einstein-Gauss-Bonnet theory of gravity. Physical Review D, American Physical Society vol. 102 (8), 084005-084005. 01-10-2020
Fernandes PGS, Carrilho P, Clifton T and Mulryne DJ (2020). Derivation of Regularized Field Equations for the Einstein-Gauss-Bonnet
Theory in Four Dimensions. Physical Review D, American Physical Society vol. 102 (2) 06-07-2020
2019
Carrilho P, Malik KA and Mulryne DJ (2019). Dissecting the growth of the power spectrum for primordial black holes. Physical Review D: Particles, Fields, Gravitation and Cosmology, American Physical Society 26-11-2019
Imrith SV, Mulryne DJ and Rajantie A (2019). The primordial curvature perturbation from lattice simulations. Physical Review D, American Physical Society vol. 100 30-09-2019
2018
Imrith SV, Mulryne DJ and Rajantie A (2018). Non-perturbative $δN$. Physical Review D, Particles and fields, American Physical Society vol. 98 (4) 14-08-2018
Carrilho P, MULRYNE DJ, RONAYNE J and TENKANEN T (2018). Attractor Behaviour in Multifield Inflation. Journal of Cosmology and Astroparticle Physics, IOP Publishing 21-06-2018
Ronayne JW and Mulryne DJ (2018). Numerically evaluating the bispectrum in curved field-space - with
PyTransport 2.0. Journal of Cosmology and Astroparticle Physics 16-01-2018
2017
Leithes A, Malik KA, Mulryne DJ and Nunes NJ (2017). Linear density perturbations in multifield coupled quintessence. PHYSICAL REVIEW D vol. 95 (12) 15-06-2017
2016
Dias M, Frazer J, Mulryne DJ and Seery D (2016). Numerical evaluation of the bispectrum in multiple field inflation—the transport approach with code. Journal of Cosmology and Astroparticle Physics vol. 2016 (12), 033-033. 19-12-2016
Kumar KS, Mulryne DJ, Nunes NJ, Marto J and Moniz PV (2016). Non-Gaussianity in multiple three-form field inflation. Physical Review D - Particles, Fields, Gravitation and Cosmology vol. 94 (10) 07-11-2016
Kenton Z and Mulryne DJ (2016). The Separate Universe Approach to Soft Limits. Journal of Cosmology and Astroparticle Physics, IOP Publishing: Hybrid Open Access vol. 2016 21-10-2016
Mulryne DJ and Ronayne JW (2016). PyTransport: A Python package for the calculation of inflationary
correlation functions. 01-09-2016
2015
Kenton Z and Mulryne DJ (2015). The squeezed limit of the bispectrum in multi-field inflation. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (10) 08-10-2015
Kenton Z, Mulryne DJ and Thomas S (2015). Generating the cosmic microwave background power asymmetry with. Physical Review D vol. 92 (2) 01-07-2015
Enqvist K, Mulryne DJ and Nurmi S (2015). Resolving primordial physics through correlated signatures. Journal of Cosmology and Astroparticle Physics, IOP Publishing vol. 2015 (05), 010-010. 01-05-2015
2014
Dias M, Elliston J, Frazer J, Mulryne D and Seery D (2014). The curvature perturbation at second order. JCAP02(2015)040 13-10-2014
Elliston J, Orani S and Mulryne DJ (2014). General analytic predictions of two-field inflation and perturbative
reheating. Phys. Rev. D vol. 89 19-02-2014
Ellis J, Mavromatos NE and Mulryne DJ (2014). Exploring Two-Field Inflation in the Wess-Zumino Model. 23-01-2014
2013
Elliston J, Mulryne DJ and Tavakol R (2013). What Planck does not tell us about inflation. Phys.Rev. D vol. 88 26-07-2013
2012
Mulryne DJ, Noller J and Nunes NJ (2012). Three-form inflation and non-Gaussianity. JCAP vol. 1212 10-09-2012
Anderson GJ, Mulryne DJ and Seery D (2012). Transport equations for the inflationary trispectrum. JCAP10(2012)019 30-04-2012
Elliston J, Alabidi L, Huston I, Mulryne DJ and Tavakol R (2012). Large trispectrum in two-field slow-roll inflation. JCAP vol. 1209 30-03-2012
Seery D, Mulryne DJ, Frazer J and Ribeiro RH (2012). Inflationary perturbation theory is geometrical optics in phase space. JCAP vol. 09 12-03-2012
2011
Mulryne DJ and Ward J (2011). Towards an observational appraisal of string cosmology. CLASSICAL QUANT GRAV vol. 28 (20) 21-10-2011
Elliston J, Mulryne D, Seery D and Tavakol R (2011). Evolution of non-Gaussianity in multi-scalar field models. Int.J.Mod.Phys. A vol. 26, 3821-3832. 12-07-2011
Elliston J, Mulryne DJ, Seery D and Tavakol R (2011). Evolution of fNL to the adiabatic limit. JCAP vol. 1111 10-06-2011
Elliston J, Mulryne DJ, Seery D and Tavakol R (2011). Evolution of fNL to the adiabatic limit. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (11) 01-01-2011
ELLISTON J, MULRYNE D, SEERY D and TAVAKOL R (2011). EVOLUTION OF NON-GAUSSIANITY IN MULTI-SCALAR FIELD MODELS. International Journal of Modern Physics Conference Series, World Scientific Publishing vol. 3, 203-214. 01-01-2011
2010
Mulryne DJ, Seery D and Wesley D (2010). Moment transport equations for the primordial curvature perturbation. JCAP vol. 04 18-08-2010
Bojowald M, Mulryne D, Nelson W and Tavakol R (2010). The high-density regime of kinetic-dominated loop quantum cosmology. Phys.Rev.D vol. 82 22-04-2010
2009
Mulryne DJ, Seery D and Wesley D (2009). Moment transport equations for non-Gaussianity. JCAP vol. 1001 11-09-2009
Barnaby N, Mulryne DJ, Nunes NJ and Robinson P (2009). Dynamics and stability of light-like tachyon condensation. J HIGH ENERGY PHYS (3) 01-03-2009
Copeland EJ, Mulryne DJ, Nunes NJ and Shaeri M (2009). Gravitational wave background from superinflation in loop quantum cosmology. PHYS REV D vol. 79 (2) 01-01-2009
2008
MULRYNE DJ and TAVAKOL R (2008). SOME COSMOLOGICAL CONSEQUENCES OF LOOP QUANTUM GRAVITY. The Eleventh Marcel Grossmann Meeting. 01-09-2008
Mulryne DJ and Nunes NJ (2008). Diffusing nonlocal inflation: Solving the field equations as an initial value problem. PHYS REV D vol. 78 (6) 01-09-2008
Copeland EJ, Mulryne DJ, Nunes NJ and Shaeri M (2008). Superinflation in loop quantum cosmology. PHYS REV D vol. 77 (2) 01-01-2008
2007
Mena FC, Mulryne DJ and Tavakol R (2007). Nonlinear vector perturbations in a contracting universe. CLASSICAL QUANT GRAV vol. 24 (10), 2721-2734. 21-05-2007
2006
Mulryne DJ and Nunes NJ (2006). Constraints on a scale invariant power spectrum from superinflation in loop quantum cosmology. PHYS REV D vol. 74 (8) 01-10-2006
Lidsey JE and Mulryne DJ (2006). Graceful entrance to braneworld inflation. PHYS REV D vol. 73 (8) 01-04-2006
2005
Tavakol R, LIDSEY JE, Mulryne DJ and Ellis GFR (2005). An Emergent Universe from a Loop. Physical Review D vol. D71, 123512-1-123512-11. 01-06-2005
Mulryne DJ, Nunes NJ, Tavakol R and Lidsey JE (2005). Inflationary cosmology and oscillating universes in loop quantum cosmology. INTERNATIONAL JOURNAL OF MODERN PHYSICS A vol. 20 (11), 2347-2357. 30-04-2005
2004
Tavakol R, LIDSEY JE, Mulryne D and Nunes NJ (2004). Oscillatory universes in loop quantum cosmology and initial conditions for inflation. Physical Review D vol. D70, 063521-1-063521-6. 01-09-2004
Tavakol R, LIDSEY JE, Mulryne DJ, Singh P and Bojowald M (2004). Inflationary Cosmology and Quantization Ambiguities in Semi-Classical Loop Quantum Gravity. Phys Rev vol. D70, 043530-1-043530-15. 01-01-2004
Grants
Grants of specific relevance to the Centre for Fundamental PhysicsAstronomy Research at Queen Mary 2023 - 2026Christopher Clarkson, Richard Nelson, Timothy Clifton, William Sutherland, Edward Gillen, Karim Malik, Thomas James Haworth, Sijme-Jan Paardekooper, Theresa Baker, David Mulryne, Philip Bull, Juan Antonio Valiente Kroon, Charalampos Markakis, Mohammad Mahdi Godazgar, Katherine Clough, Pau Figueras and Chung Tse Shao
£1,625,769 Science & Technology Research Council (STFC) (01-04-2023 - 30-09-2026)
Research Fellows Enhanced Research Expenses 2021David Mulryne
£115,746 Royal Society (01-01-2022 - 27-02-2026)
Observable signatures of inflationary physics: correlation functions and beyond - URF renewalDavid Mulryne
£426,161 Royal Society (07-12-2020 - 27-02-2026)
Connecting theory to observations using numerical simulations of inflatDavid Mulryne
£94,906 Royal Society (01-12-2017 - 27-02-2025)