Gravity, Twistors and Amplitudes

Over the last ten years, tremendous progress has been made in understanding scattering amplitudes in Yang-Mills and gravity theories. On the technical side, new explicit formulae for general n-particle scattering amplitudes have been discovered that exhibit remarkable new mathematical structures. On the conceptual side, a new proof of GR and Yang-Mills uniqueness has been obtained, in which the basic cubic interaction is fixed (on-shell) from simple scaling considerations, and all other amplitudes are built from the basic cubic ones by the use of recursion relations. Thus, from this perspective, gravity and Yang-Mills theories are the simplest nontrivial quantum field theories. Furthermore, there are remarkable relations between gravity and the `square' of Yang-Mills arising from colour-kinematic duality. Unfortunately, at present we only see manifestations of this simplicity in the perturbative structure of the field equations. An open problem is to understand these structures nonperturbatively, arising from hidden structures also in fully non-linear gravity and Yang-Mills theories.

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Casali, E (University of Oxford) Monday 4th July 2016 - 15:00 to 16:00

07-19

01:13:00

Soft Black Hole Hair

Perry, M (University of Cambridge) Tuesday 5th July 2016 - 15:00 to 16:00

07-19

01:01:00

Memory Effects

Pasterski, S (Harvard University) Tuesday 5th July 2016 - 10:00 to 11:00

07-19

01:01:00

Perturbative gauge theory and gravity with cosmological constant

Adamo, T (University of Cambridge) Friday 24th June 2016 - 10:00 to 11:00

07-18

01:02:00

Ambitwistors and strings in 4 dimensions

Mason, L (University of Oxford) Thursday 23rd June 2016 - 15:00 to 16:00

07-18

01:05:00

Landau Singularities and Cluster Structure in Scattering Amplitudes

Volovich, A (Brown University) Wednesday 22nd June 2016 - 10:00 to 11:00

07-18

01:17:00

7D lift of 4D gravity

Krasnov, K (University of Nottingham) Tuesday 21st June 2016 - 15:00 to 16:00

07-18

58:19

4D gravity via connections

Fine, J (Université Libre de Bruxelles) Tuesday 21st June 2016 - 10:00 to 11:00

07-18

01:11:00

Connection 3D gravity and its 6D interpretation

Krasnov, K (University of Nottingham) Monday 20th June 2016 - 15:00 to 16:00

07-18

54:32

Null Infinity

Pasterski, S (Harvard University) Monday 4th July 2016 - 10:00 to 11:00

07-18

01:02:00

Universality in string interactions

Schlotterer, O (Max-Planck-Institut fur Gravitationphysik) Friday 1st July 2016 - 09:00 to 10:00

07-06

01:08:00

Two-loop Integrands from the Riemann Sphere

Geyer, Y (University of Oxford) Thursday 30th June 2016 - 11:30 to 12:30

07-06

01:16:00

On the null string origin of the ambitwistor string

Tourkine, P (University of Cambridge) Friday 1st July 2016 - 11:30 to 12:30

07-06

01:03:00

Singularity structure of gravity amplitudes

Trnka, J (University of California, Davis) Friday 1st July 2016 - 16:00 to 17:00

07-06

57:17

Untwisting the pure spinor formalism

Berkovits, N (ICTP-SAIFR/IFT-UNESP, Sao Paulo) Friday 1st July 2016 - 10:00 to 11:00

07-06

01:03:00

The classical double copy

White, C (University of Glasgow) Thursday 30th June 2016 - 16:00 to 17:00

07-06

01:01:00

Color-kinematics duality for QCD and pure gravities

Ochirov, A (University of Edinburgh) Friday 1st July 2016 - 14:30 to 15:30

07-06

59:27

One Loop Integrands for Scattering Amplitudes from the Riemann Sphere

Monteiro, R (CERN - European Organisation for Nuclear Research) Thursday 30th June 2016 - 10:00 to 11:00

07-06

01:05:00

Solving the Scattering Equations

Goddard, P (Institute for Advanced Study, Princeton) Thursday 30th June 2016 - 14:30 to 15:30

07-06

01:00:00

String Theory, Scattering Equations and Analytic Gluon Amplitudes

Bjerrum-Bohr, E (Københavns Universitet (University of Copenhagen)) Thursday 30th June 2016 - 09:00 to 10:00

07-06

54:33

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