Professor of Mathematics Tutorial Fellow St Peter's College.
+44 1865 615328
University of Oxford
Andrew Wiles Building
Radcliffe Observatory Quarter
Loop Integrands for Scattering Amplitudes from the Riemann Sphere.
Physical review letters issue 12 volume 115 page 121603- (16 September 2015)
Ambitwistor strings at null infinity and (subleading) soft limits
CLASSICAL AND QUANTUM GRAVITY issue 5 volume 32 (5 March 2015) Full text available
Ambitwistor strings in four dimensions.
Physical review letters issue 8 volume 113 page 081602- (19 August 2014)
Twistor-strings, Grassmannians and leading singularities
JOURNAL OF HIGH ENERGY PHYSICS issue 3 (March 2010) Full text available
Plane wave backgrounds and colour-kinematics duality
JOURNAL OF HIGH ENERGY PHYSICS issue 2 volume 2019 (28 February 2019) Full text available
Ambitwistor string vertex operators on curved backgrounds
Journal of High Energy Physics issue 1 volume 2019 (29 January 2019)
Amplitudes on plane waves from ambitwistor strings
JHEP 1711: 160, 2017 issue 11 (24 November 2017) Full text available
Twistor theory at fifty: from contour integrals to twistor strings.
Proceedings. Mathematical, physical, and engineering sciences issue 2206 volume 473 page 20170530- (11 October 2017)
My research interests lies in mathematical physics, focussing mostly on general relativity and quantum theory.
Much of my research is centred around twistor theory, a programme originally introduced by Roger Penrose as an approach to the unification of quantum theory and general relativity. Twistor theory now has strong links to string theory and finds wide application to problems in mathematical physics, geometry, nonlinear differential equations, particularly integrable systems. Much of my current work is on ideas arising from Witten's twistor-string theory and applications of twistor theory to scattering amplitudes. Further details of my research interests can be obtained from my publication list (see below for recent articles).
Prizes, awards, and scholarships:
Leverhulme Senior Research Fellow 2005-6, Leverhulme Research Fellow 2011-13