# Gravity, Twistors and Amplitudes

Created: | 2016-07-04 13:06 |
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Institution: | Isaac Newton Institute for Mathematical Sciences |

Description: | 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. |

# Media items

This collection contains 35 media items.

### Media items

#### 4D gravity via connections

Fine, J (Université Libre de Bruxelles)

Tuesday 21st June 2016 - 10:00 to 11:00

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Mon 18 Jul 2016

#### 7D lift of 4D gravity

Krasnov, K (University of Nottingham)

Tuesday 21st June 2016 - 15:00 to 16:00

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Mon 18 Jul 2016

#### A 6d interpretation of 3d gravity

Herfray, Y (University of Nottingham, ENS - Lyon)

Tuesday 28th June 2016 - 16:00 to 17:00

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Wed 6 Jul 2016

#### ALC G2 manifolds

Foscolo, L (Stony Brook University)

Tuesday 28th June 2016 - 09:00 to 10:00

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Wed 6 Jul 2016

#### Ambitwistors and strings in 4 dimensions

Mason, L (University of Oxford)

Thursday 23rd June 2016 - 15:00 to 16:00

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Mon 18 Jul 2016

#### Black Holes and Higher Derivatives in Gravity

Stelle, K (Imperial College London)

Wednesday 29th June 2016 - 14:30 to 15:30

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Wed 6 Jul 2016

#### Circle-invariant definite connections and symplectic Fano 6-manifolds

Panov, D (King's College London)

Monday 27th June 2016 - 16:00 to 17:00

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Wed 6 Jul 2016

#### Color-kinematics duality for QCD and pure gravities

Ochirov, A (University of Edinburgh)

Friday 1st July 2016 - 14:30 to 15:30

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Wed 6 Jul 2016

#### Connection 3D gravity and its 6D interpretation

Krasnov, K (University of Nottingham)

Monday 20th June 2016 - 15:00 to 16:00

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Mon 18 Jul 2016

#### Efficiency=Geometry? Decoding the DNA of prediction in gauge, gravity, and effective field theories.

Carrasco, J J (CEA/Saclay)

Wednesday 29th June 2016 - 16:00 to 17:00

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Wed 6 Jul 2016

#### G2-instantons and Seiberg-Witten monopoles

Haydys, A (Universität Bielefeld)

Tuesday 28th June 2016 - 10:00 to 11:00

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Wed 6 Jul 2016

#### Geometry, Particle Physics and singular G2-manifolds

Acharya, B (King's College London, Abdus Salam International Centre for Theoretical Physics)

Wednesday 29th June 2016 - 09:00 to 10:00

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Wed 6 Jul 2016

#### G₂–instantons over twisted connected sums

Walpuski, T (Massachusetts Institute of Technology)

Tuesday 28th June 2016 - 11:30 to 12:30

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Wed 6 Jul 2016

#### Landau Singularities and Cluster Structure in Scattering Amplitudes

Volovich, A (Brown University)

Wednesday 22nd June 2016 - 10:00 to 11:00

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Mon 18 Jul 2016

#### Laplacian flow for closed G_2-structures

Wei, Y (University College London)

Monday 27th June 2016 - 11:30 to 12:30

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Wed 6 Jul 2016

#### Memory Effects

Pasterski, S (Harvard University)

Tuesday 5th July 2016 - 10:00 to 11:00

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Tue 19 Jul 2016

#### Non-compactness of initial data sets in high dimensions

Premoselli, B (Université Libre de Bruxelles)

Monday 27th June 2016 - 14:30 to 15:30

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Wed 6 Jul 2016

#### Null Infinity

Pasterski, S (Harvard University)

Monday 4th July 2016 - 10:00 to 11:00

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Mon 18 Jul 2016

#### On the null string origin of the ambitwistor string

Tourkine, P (University of Cambridge)

Friday 1st July 2016 - 11:30 to 12:30

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Wed 6 Jul 2016

#### On-Shell Diagrams for N = 8 Supergravity Amplitudes

Lipstein, A (University of Durham)

Wednesday 29th June 2016 - 10:00 to 11:00

**Collection**:
Gravity, Twistors and Amplitudes

**Institution**:
Isaac Newton Institute for Mathematical Sciences

**Created**:
Wed 6 Jul 2016