Outputs (622)

Nearly critical holographic superfluids (2022)
Journal Article

We study the nearly critical behaviour of holographic superfluids at finite temperature and chemical potential in their probe limit. This allows us to examine the coupled dynamics of the full complex order parameter with the charge density of the sys... Read More about Nearly critical holographic superfluids.

Yangian Symmetry in Five Dimensions (2022)
Journal Article

Quantum gravity in AdS7×S4 is dual to a six-dimensional (6D) superconformal field theory, known as the 6D (2,0) theory, which is very challenging to describe because it lacks a conventional Lagrangian description. On the other hand, certain null redu... Read More about Yangian Symmetry in Five Dimensions.

Higher order initial conditions with massive neutrinos (2022)
Journal Article

The discovery that neutrinos have mass has important consequences for cosmology. The main effect of massive neutrinos is to suppress the growth of cosmic structure on small scales. Such growth can be accurately modelled using cosmological N-body simu... Read More about Higher order initial conditions with massive neutrinos.

2-Group symmetries and M-theory (2022)
Journal Article

Quantum Field Theories engineered in M-theory can have 2-group symmetries, mixing 0-form and 1-form symmetry backgrounds in non-trivial ways. In this paper we develop methods for determining the 2-group structure from the boundary geometry of the M-t... Read More about 2-Group symmetries and M-theory.

Automation of antenna subtraction in colour space: gluonic processes (2022)
Journal Article

We present the colourful antenna subtraction method, a reformulation of the antenna subtraction scheme for next-to-next-to-leading order (NNLO) calculations in QCD. The aim of this new approach is to achieve a general and process-independent construc... Read More about Automation of antenna subtraction in colour space: gluonic processes.

Semiclassics of three-dimensional SCFTs from holography (2022)
Journal Article

We use holography to compute the large-N eective eld theory along the moduli space of vacua of an innite class of three-dimensional N = 2 SCFTs admitting a dual M-theory description. We focus in particular on toric models and show how the spectrum of... Read More about Semiclassics of three-dimensional SCFTs from holography.

Simulating anti-skyrmions on a lattice (2022)
Journal Article

Magnetic skyrmions are topological spin structures that naturally emerge in magnetic materials. While a vast amount of effort has gone into the study of their properties, their counterpart of opposite topological charge, the anti-skyrmion, has not re... Read More about Simulating anti-skyrmions on a lattice.

Antenna subtraction for jet production observables in full colour at NNLO (2022)
Journal Article

We describe the details of the calculation of the full colour NNLO QCD corrections to jet production observables at the LHC with antenna subtraction. All relevant matrix elements for the process pp → jj at NNLO in full colour are colour-decomposed an... Read More about Antenna subtraction for jet production observables in full colour at NNLO.

The SAGEX Review on scattering amplitudes (2022)
Journal Article

This is an introduction to, and invitation to read, a series of review articles on scattering amplitudes in gauge theory, gravity, and superstring theory. Our aim is to provide an overview of the field, from basic aspects to a selection of current (2... Read More about The SAGEX Review on scattering amplitudes.

Ising Machines for Diophantine Problems in Physics (2022)
Journal Article

Diophantine problems arise frequently in physics, in for example anomaly cancellation conditions, string consistency conditions and so forth. We present methods to solve such problems to high order on annealers that are based on the quadratic Ising M... Read More about Ising Machines for Diophantine Problems in Physics.

Comments on QCD3 and anomalies with fundamental and adjoint matter (2022)
Journal Article

’t Hooft anomaly matching is powerful for constraining the low energy phases of gauge theories. In 3d one common anomaly is the parity anomaly in a T-symmetric theory where one cannot gauge the global symmetry group without breaking the time-reversal... Read More about Comments on QCD3 and anomalies with fundamental and adjoint matter.

A duality connecting neural network and cosmological dynamics (2022)
Journal Article

We demonstrate that the dynamics of neural networks (NNs) trained with gradient descent and the dynamics of scalar fields in a flat, vacuum energy dominated Universe are structurally profoundly related. This duality provides the framework for synergi... Read More about A duality connecting neural network and cosmological dynamics.

Decomposition of triple collinear splitting functions (2022)
Journal Article

In the kinematic region where three particles i, j, k are collinear, the multi-parton scattering amplitudes factorise into a product of a triple collinear splitting function and a multi-parton scattering amplitude with two fewer particles. These trip... Read More about Decomposition of triple collinear splitting functions.

Constraining the Charm-Yukawa coupling at the Large Hadron Collider (2022)
Journal Article

We present theoretical results for the sensitivity of charm Yukawa coupling measurements in future high-luminosity LHC runs in three channels: Vector Boson Fusion (VBF), W Higgs-strahlung and Z Higgs-strahlung production of a Higgs boson and its subs... Read More about Constraining the Charm-Yukawa coupling at the Large Hadron Collider.

The SAGEX review on scattering amplitudes chapter 8: half BPS correlators (2022)
Journal Article

Half BPS correlators in $\mathcal{N}=4$ super Yang–Mills theory are key quantities both in the AdS/CFT correspondence as well as in scattering amplitudes research. They are dual at strong coupling to quantum gravity amplitudes. At weak coupling on th... Read More about The SAGEX review on scattering amplitudes chapter 8: half BPS correlators.

Revisiting inclusive decay widths of charmed mesons (2022)
Journal Article

Determining for the first time the Darwin operator contribution for the non-leptonic charm-quark decays and using new non-perturbative results for the matrix elements of ∆C = 0 four-quark operators, including eye-contractions, we present a comprehens... Read More about Revisiting inclusive decay widths of charmed mesons.

The SAGEX Review on scattering amplitudes, Chapter 10: Selected topics on modular covariance of type IIB string amplitudes and their N=4 supersymmetric Yang-Mills duals (2022)
Journal Article

This article reviews some results of the SAGEX programme that have developed in the understanding of the interplay of supersymmetry and modular covariance of scattering amplitudes in type IIB superstring theory and its holographic image in N=4 supers... Read More about The SAGEX Review on scattering amplitudes, Chapter 10: Selected topics on modular covariance of type IIB string amplitudes and their N=4 supersymmetric Yang-Mills duals.

Completely quantum neural networks (2022)
Journal Article

Artificial neural networks are at the heart of modern deep learning algorithms. We describe how to embed and train a general neural network in a quantum annealer without introducing any classical element in training. To implement the network on a sta... Read More about Completely quantum neural networks.

Exact results for duality-covariant integrated correlators in N=4 SYM with general classical gauge groups (2022)
Journal Article

We present exact expressions for certain integrated correlators of four superconformal primary operators in the stress tensor multiplet of N = 4 supersymmetric Yang–Mills (SYM) theory with classical gauge group, GN = SO(2N), SO(2N + 1), USp(2N). Thes... Read More about Exact results for duality-covariant integrated correlators in N=4 SYM with general classical gauge groups.

NNLO QCD corrections in full colour for jet production observables at the LHC (2022)
Journal Article

Calculations for processes involving a high multiplicity of coloured particles often employ a leading colour approximation, where only the leading terms in the expansion of the number of colours Nc and the number of flavours nf are retained. This app... Read More about NNLO QCD corrections in full colour for jet production observables at the LHC.