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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)
Scattering amplitudes and BCFW recursion in twistor space
Journal of High Energy Physics issue 1 volume 2010 (2 August 2010)
Twistor-strings, Grassmannians and leading singularities
JOURNAL OF HIGH ENERGY PHYSICS issue 3 (March 2010) Full text available
Amplitudes on plane waves from ambitwistor strings
JHEP 1711: 160, 2017 (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)
JOURNAL OF HIGH ENERGY PHYSICS issue 9 (28 September 2017) Full text available
Two-loop scattering amplitudes from the Riemann sphere
PHYSICAL REVIEW D issue 12 volume 94 (30 December 2016) Full text available
One-loop amplitudes on the Riemann sphere
JOURNAL OF HIGH ENERGY PHYSICS issue 3 (16 March 2016) Full text available
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