Dr David Mulryne

David Mulryne

Royal Society Universty Research Fellow | Reader in Theoretical Cosmology

School of Physical and Chemical Sciences
Queen Mary University of London
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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

solid heart iconPublications of specific relevance to the Centre for Fundamental Physics

2024

Relevant PublicationLoop corrections in the separate universe picture
Iacconi L, Mulryne D and Seery D
Journal of Cosmology and Astroparticle Physics, Iop Publishing vol. 2024 (06) 
01-06-2024
Relevant PublicationNumerical 1-loop correction from a potential yielding ultra-slow-roll dynamics
Davies MW, Iacconi L and Mulryne DJ
Journal of Cosmology and Astroparticle Physics, Iop Publishing vol. 2024 (04) 
01-04-2024

2023

Relevant PublicationMulti-field inflation with large scalar fluctuations: non-Gaussianity and perturbativity
Iacconi L and Mulryne DJ
Journal of Cosmology and Astroparticle Physics, Iop Publishing vol. 2023 (09), 033-033.  
01-09-2023
Relevant PublicationA new approach and code for spinning black holes in modified gravity
Fernandes PGS and Mulryne DJ
Classical and Quantum Gravity, Iop Publishing vol. 40 (16), 165001-165001.  
11-07-2023

2022

Relevant PublicationExploring the small mass limit of stationary black holes in theories with Gauss–Bonnet terms
Fernandes PGS, Mulryne DJ and Delgado JFM
Classical and Quantum Gravity, Iop Publishing vol. 39 (23), 235015-235015.  
14-11-2022
Relevant PublicationNon-Gaussianity in inflationary scenarios for primordial black holes
Davies MW, Carrilho P and Mulryne DJ
Journal of Cosmology and Astroparticle Physics, Iop Publishing vol. 2022 (06), 019-019.  
01-06-2022
Relevant PublicationThe 4D Einstein–Gauss–Bonnet theory of gravity: a review
Fernandes PGS, Carrilho P, Clifton T and Mulryne DJ
Classical and Quantum Gravity vol. 39 (6), 063001-063001.  
28-02-2022

2021

Relevant PublicationBlack Holes in the Scalar-Tensor Formulation of 4D Einstein-Gauss-Bonnet Gravity: Uniqueness of Solutions, and a New Candidate for Dark Matter
Fernandes PGS, Carrilho P, Clifton T and Mulryne DJ
Physical Review D: Particles, Fields, Gravitation and Cosmology, American Physical Society vol. 104 
11-08-2021
Relevant PublicationNon-Gaussianity after many-field reheating
Carrilho P, Mulryne D and Ronayne J
Physical Review D, American Physical Society (Aps) vol. 103 (8), 083532-083532.  
15-04-2021

2020

Relevant PublicationObservational constraints on the regularized 4D Einstein-Gauss-Bonnet theory of gravity
Clifton T, Carrilho P, Fernandes PGS and Mulryne DJ
Physical Review D, American Physical Society vol. 102 (8), 084005-084005.  
01-10-2020
Relevant PublicationDerivation of Regularized Field Equations for the Einstein-Gauss-Bonnet Theory in Four Dimensions
Fernandes PGS, Carrilho P, Clifton T and Mulryne DJ
Physical Review D, American Physical Society vol. 102 (2) 
06-07-2020

2019

Relevant PublicationDissecting the growth of the power spectrum for primordial black holes
Carrilho P, Malik KA and Mulryne DJ
Physical Review D: Particles, Fields, Gravitation and Cosmology, American Physical Society 
26-11-2019
Relevant PublicationThe primordial curvature perturbation from lattice simulations
Imrith SV, Mulryne DJ and Rajantie A
Physical Review D, American Physical Society vol. 100 
30-09-2019

2018

Relevant PublicationNon-perturbative $δN$
Imrith SV, Mulryne DJ and Rajantie A
Physical Review D, Particles and Fields, American Physical Society vol. 98 (4) 
14-08-2018
Relevant PublicationAttractor Behaviour in Multifield Inflation
Carrilho P, MULRYNE DJ, RONAYNE J and TENKANEN T
Journal of Cosmology and Astroparticle Physics, Iop Publishing 
21-06-2018
Relevant PublicationNumerically evaluating the bispectrum in curved field-space - with PyTransport 2.0
Ronayne JW and Mulryne DJ
Journal of Cosmology and Astroparticle Physics 
16-01-2018

2017

Relevant PublicationLinear density perturbations in multifield coupled quintessence
Leithes A, Malik KA, Mulryne DJ and Nunes NJ
Physical Review D vol. 95 (12) 
15-06-2017

2016

Relevant PublicationNumerical evaluation of the bispectrum in multiple field inflation—the transport approach with code
Dias M, Frazer J, Mulryne DJ and Seery D
Journal of Cosmology and Astroparticle Physics vol. 2016 (12), 033-033.  
19-12-2016
Relevant PublicationNon-Gaussianity in multiple three-form field inflation
Kumar KS, Mulryne DJ, Nunes NJ, Marto J and Moniz PV
Physical Review D - Particles, Fields, Gravitation and Cosmology vol. 94 (10) 
07-11-2016
Relevant PublicationThe Separate Universe Approach to Soft Limits
Kenton Z and Mulryne DJ
Journal of Cosmology and Astroparticle Physics, Iop Publishing: Hybrid Open Access vol. 2016 
21-10-2016
Relevant PublicationPyTransport: A Python package for the calculation of inflationary correlation functions
Mulryne DJ and Ronayne JW
 
01-09-2016

2015

Relevant PublicationThe squeezed limit of the bispectrum in multi-field inflation
Kenton Z and Mulryne DJ
Journal of Cosmology and Astroparticle Physics (10) 
08-10-2015
Relevant PublicationGenerating the cosmic microwave background power asymmetry with
Kenton Z, Mulryne DJ and Thomas S
Physical Review D vol. 92 (2) 
01-07-2015
Relevant PublicationResolving primordial physics through correlated signatures
Enqvist K, Mulryne DJ and Nurmi S
Journal of Cosmology and Astroparticle Physics, Iop Publishing vol. 2015 (05), 010-010.  
01-05-2015

2014

Relevant PublicationThe curvature perturbation at second order
Dias M, Elliston J, Frazer J, Mulryne D and Seery D
Jcap02(2015)040 
13-10-2014
Relevant PublicationGeneral analytic predictions of two-field inflation and perturbative reheating
Elliston J, Orani S and Mulryne DJ
Phys. Rev. D vol. 89 
19-02-2014
Relevant PublicationExploring Two-Field Inflation in the Wess-Zumino Model
Ellis J, Mavromatos NE and Mulryne DJ
 
23-01-2014

2013

Relevant PublicationWhat Planck does not tell us about inflation
Elliston J, Mulryne DJ and Tavakol R
Phys.Rev. D vol. 88 
26-07-2013
Relevant PublicationTransport techniques for non-Gaussianity
Mulryne DJ
 
19-02-2013
Relevant PublicationTransporting non-Gaussianity from sub to super-horizon scales
Mulryne DJ
 
15-02-2013

2012

Relevant PublicationThree-form inflation and non-Gaussianity
Mulryne DJ, Noller J and Nunes NJ
Jcap vol. 1212 
10-09-2012
Relevant PublicationTransport equations for the inflationary trispectrum
Anderson GJ, Mulryne DJ and Seery D
Jcap10(2012)019 
30-04-2012
Relevant PublicationLarge trispectrum in two-field slow-roll inflation
Elliston J, Alabidi L, Huston I, Mulryne DJ and Tavakol R
Jcap vol. 1209 
30-03-2012
Relevant PublicationInflationary perturbation theory is geometrical optics in phase space
Seery D, Mulryne DJ, Frazer J and Ribeiro RH
Jcap vol. 09 
12-03-2012

2011

Relevant PublicationTowards an observational appraisal of string cosmology
Mulryne DJ and Ward J
Classical Quant Grav vol. 28 (20) 
21-10-2011
Relevant PublicationNon-Gaussianity from the hybrid potential
Mulryne D, Orani S and Rajantie A
 
24-07-2011
Relevant PublicationEvolution of non-Gaussianity in multi-scalar field models
Elliston J, Mulryne D, Seery D and Tavakol R
Int.J.Mod.Phys. A vol. 26, 3821-3832.  
12-07-2011
Relevant PublicationEvolution of fNL to the adiabatic limit
Elliston J, Mulryne DJ, Seery D and Tavakol R
Jcap vol. 1111 
10-06-2011
Relevant PublicationEvolution of fNL to the adiabatic limit
Elliston J, Mulryne DJ, Seery D and Tavakol R
Journal of Cosmology and Astroparticle Physics (11) 
01-01-2011
Relevant PublicationEVOLUTION OF NON-GAUSSIANITY IN MULTI-SCALAR FIELD MODELS
ELLISTON J, MULRYNE D, SEERY D and TAVAKOL R
International Journal of Modern Physics Conference Series, World Scientific Publishing vol. 3, 203-214.  
01-01-2011

2010

Relevant PublicationMoment transport equations for the primordial curvature perturbation
Mulryne DJ, Seery D and Wesley D
Jcap vol. 04 
18-08-2010
Relevant PublicationThe high-density regime of kinetic-dominated loop quantum cosmology
Bojowald M, Mulryne D, Nelson W and Tavakol R
Phys.Rev.D vol. 82 
22-04-2010

2009

Relevant PublicationNon-Gaussianity constrains hybrid inflation
Mulryne D, Seery D and Wesley D
 
18-11-2009
Relevant PublicationMoment transport equations for non-Gaussianity
Mulryne DJ, Seery D and Wesley D
Jcap vol. 1001 
11-09-2009
Relevant PublicationDynamics and stability of light-like tachyon condensation
Barnaby N, Mulryne DJ, Nunes NJ and Robinson P
J High Energy Phys (3) 
01-03-2009
Relevant PublicationNon-linear non-local Cosmology
Nunes NJ and Mulryne DJ
DARK SIDE OF THE UNIVERSE. vol. 1115, 329-334. Editors: Khalil S. 
01-01-2009
Relevant PublicationGravitational wave background from superinflation in loop quantum cosmology
Copeland EJ, Mulryne DJ, Nunes NJ and Shaeri M
Phys Rev D vol. 79 (2) 
01-01-2009

2008

Relevant PublicationSOME COSMOLOGICAL CONSEQUENCES OF LOOP QUANTUM GRAVITY
MULRYNE DJ and TAVAKOL R
The Eleventh Marcel Grossmann Meeting., 1915-1919.  
01-09-2008
Relevant PublicationDiffusing nonlocal inflation: Solving the field equations as an initial value problem
Mulryne DJ and Nunes NJ
Phys Rev D vol. 78 (6) 
01-09-2008
Relevant PublicationSuperinflation in loop quantum cosmology
Copeland EJ, Mulryne DJ, Nunes NJ and Shaeri M
Phys Rev D vol. 77 (2) 
01-01-2008

2007

Relevant PublicationNonlinear vector perturbations in a contracting universe
Mena FC, Mulryne DJ and Tavakol R
Classical Quant Grav vol. 24 (10), 2721-2734.  
21-05-2007

2006

Relevant PublicationConstraints on a scale invariant power spectrum from superinflation in loop quantum cosmology
Mulryne DJ and Nunes NJ
Phys Rev D vol. 74 (8) 
01-10-2006
Relevant PublicationGraceful entrance to braneworld inflation
Lidsey JE and Mulryne DJ
Phys Rev D vol. 73 (8) 
01-04-2006

2005

Relevant PublicationAn Emergent Universe from a Loop
Tavakol R, LIDSEY JE, Mulryne DJ and Ellis GFR
Physical Review D vol. D71, 123512-1-123512-11.  
01-06-2005
Relevant PublicationInflationary cosmology and oscillating universes in loop quantum cosmology
Mulryne DJ, Nunes NJ, Tavakol R and Lidsey JE
International Journal of Modern Physics A vol. 20 (11), 2347-2357.  
30-04-2005

2004

Relevant PublicationOscillatory universes in loop quantum cosmology and initial conditions for inflation
Tavakol R, LIDSEY JE, Mulryne D and Nunes NJ
Physical Review D vol. D70, 063521-1-063521-6.  
01-09-2004
Relevant PublicationInflationary Cosmology and Quantization Ambiguities in Semi-Classical Loop Quantum Gravity
Tavakol R, LIDSEY JE, Mulryne DJ, Singh P and Bojowald M
Phys Rev vol. D70, 043530-1-043530-15.  
01-01-2004

Grants

solid heart iconGrants of specific relevance to the Centre for Fundamental Physics
solid heart iconAstronomy Research at Queen Mary 2023 - 2026
Chris Clarkson, Richard Nelson, Timothy Clifton, William Sutherland, Edward Gillen, Karim Malik, Thomas Haworth, Sijme-Jan Paardekooper, Theresa Baker, David Mulryne, Philip Bull, Juan A. Valiente Kroon, Charalampos Markakis, Mohammad Mahdi Godazgar, Katy Clough, Pau Figueras and Arick Shao
£1,625,769 Science & Technology Research Council (STFC)
01-04-2023 - 30-09-2026
solid heart iconEnhanced Research Expenses 2023
David Mulryne
£146,872 Royal Society
01-04-2023 - 27-02-2026
solid heart iconResearch Fellows Enhanced Research Expenses 2021
David Mulryne
£115,746 Royal Society
01-01-2022 - 27-02-2026
solid heart iconObservable signatures of inflationary physics: correlation functions and beyond - URF renewal
David Mulryne
£426,161 Royal Society
07-12-2020 - 27-02-2026
solid heart iconConnecting theory to observations using numerical simulations of inflat
David Mulryne
£94,906 Royal Society
01-12-2017 - 27-02-2025


solid heart iconUniversity Research Fellowship
David Mulryne
£452,053 Royal Society
01-10-2014 - 29-05-2021