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Dr David Mulryne


Royal Society University Research Fellow

Telephone: 020 7882 7046
Room Number: G. O. Jones Building, Room 512


My teaching

This year I am lecturing SPA7005 Cosmology.

I also contribute to teaching at Queen Mary by supervising astrophysics MSc and MSci students for their research projects, and I regularly work with and supervise PhD students.

In the past I have supervised in Cambridge and taught classes at Imperial and Queen Mary in a wide range of subjects including Cosmology, General Relativity, Quantum Mechanics, C++ computing and differential equations. I have also lectured on theoretical physics and cosmology at Queen Mary and for the Cambridge Institute of Continuing Education. 


I enjoy outreach work a lot. I regularly lecture to visiting students at Queen Mary, and visit schools myself to gives talks. I also take part in various other outreach activities. More information is in my CV available at my personal website. If you'd like me to give a talk or take part in an outreach activity please get in touch!


Research Interests:

My research interests

I am a theoretical cosmologist.

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.

I maintain a personal website which has more information about me and my research, including a fairly up to date CV. Information about a code for inflationary cosmology, PyTransport, that I have developed can be found at another site



Generating the cosmic microwave background power asymmetry with $g_{NL}$
Kenton, Zachary et al.
Phys.Rev., Volume D92, page 023505. Publication year: 2015

DOI: 10.1103/PhysRevD.92.023505


The squeezed limit of the bispectrum in multi-field inflation
Kenton, Zachary et al.
JCAP, Volume 1510, page 018. Publication year: 2015

DOI: 10.1088/1475-7516/2015/10/018



General analytic predictions of two-field inflation and perturbative reheating
Elliston, Joseph et al.
Phys.Rev., Volume D89, page 103532. Publication year: 2014

DOI: 10.1103/PhysRevD.89.103532



Transporting non-Gaussianity from sub to super-horizon scales
Mulryne, David J. et al.
JCAP, Volume 1309, page 010. Publication year: 2013

DOI: 10.1088/1475-7516/2013/09/010



Inflationary perturbation theory is geometrical optics in phase space
Seery, David et al.
JCAP, Volume 1209, page 010. Publication year: 2012

DOI: 10.1088/1475-7516/2012/09/010


Large trispectrum in two-field slow-roll inflation
Elliston, Joseph et al.
JCAP, Volume 1209, page 001. Publication year: 2012

DOI: 10.1088/1475-7516/2012/09/001


Transport equations for the inflationary trispectrum
Anderson, Gemma J. et al.
JCAP, Volume 1210, page 019. Publication year: 2012

DOI: 10.1088/1475-7516/2012/10/019



Evolution of fNL to the adiabatic limit
Elliston, Joseph et al.
JCAP, Volume 1111, page 005. Publication year: 2011

DOI: 10.1088/1475-7516/2011/11/005


Moment transport equations for the primordial curvature perturbation
Mulryne, David J. et al.
JCAP, Volume 1104, page 030. Publication year: 2011

DOI: 10.1088/1475-7516/2011/04/030


Non-Gaussianity from the hybrid potential
Mulryne, David et al.
Phys.Rev., Volume D84, page 123527. Publication year: 2011

DOI: 10.1103/PhysRevD.84.123527



Moment transport equations for non-Gaussianity
Mulryne, David J. et al.
JCAP, Volume 1001, page 024. Publication year: 2010

DOI: 10.1088/1475-7516/2010/01/024


The high-density regime of kinetic-dominated loop quantum cosmology
Bojowald, M. et al.
Phys.Rev., Volume D82, page 124055. Publication year: 2010

DOI: 10.1103/PhysRevD.82.124055



The gravitational wave background from super-inflation in Loop Quantum Cosmology
Copeland, E.J. et al.
Phys.Rev., Volume D79, page 023508. Publication year: 2009

DOI: 10.1103/PhysRevD.79.023508


Dynamics and Stability of Light-Like Tachyon Condensation
Barnaby, Neil et al.
JHEP, Volume 0903, page 018. Publication year: 2009

DOI: 10.1088/1126-6708/2009/03/018



Super-inflation in Loop Quantum Cosmology
Copeland, E.J. et al.
Phys.Rev., Volume D77, page 023510. Publication year: 2008

DOI: 10.1103/PhysRevD.77.023510


Diffusing non-local inflation: Solving the field equations as an initial value problem
Mulryne, D.J. et al.
Phys.Rev., Volume D78, page 063519. Publication year: 2008

DOI: 10.1103/PhysRevD.78.063519



A Graceful entrance to braneworld inflation
Lidsey, James E. et al.
Phys.Rev., Volume D73, page 083508. Publication year: 2006

DOI: 10.1103/PhysRevD.73.083508


Constraints on a scale invariant power spectrum from superinflation in LQC
Mulryne, D.J. et al.
Phys.Rev., Volume D74, page 083507. Publication year: 2006

DOI: 10.1103/PhysRevD.74.083507



An Emergent Universe from a loop
Mulryne, David J. et al.
Phys.Rev., Volume D71, page 123512. Publication year: 2005

DOI: 10.1103/PhysRevD.71.123512



Oscillatory universes in loop quantum cosmology and initial conditions for inflation
Lidsey, James E. et al.
Phys.Rev., Volume D70, page 063521. Publication year: 2004

DOI: 10.1103/PhysRevD.70.063521


Inflationary cosmology and quantization ambiguities in semiclassical loop quantum gravity
Bojowald, Martin et al.
Phys.Rev., Volume D70, page 043530. Publication year: 2004

DOI: 10.1103/PhysRevD.70.043530


PhD Supervision

This is not an exhaustive list and I would be happy to discuss other project possibilities.

Project Title
Early universe physics



My talks

I regularly speak in support of my research giving seminars and conference talks, a list of recent presentations is in my CV, found at my  personal website.

Some online talks hosted on external sites (videos or slides) can be found at these links:

COSMO 13 (Cambridge, 2013) [Slides]

Perturbations post planck, (Helsinki, 2013) [Slides]

Perimeter seminar, (Perimeter Institute, Canada, 2013)  [Slides and video]

COSMO 11 (Porto, 2011) [Session page (my talk is fifth with slides and video available)]

Inflation +25, (Paris, 2006) [Video]


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