8 citations · 10 across the 11 of their papers we have counts for
13 papers
Positivity for graph Laurent phenomenon algebras
Ross Glew
Laurent phenomenon algebras were introduced by Lam and Pylyavskyy as a generalisation of cluster algebras. For a family associated with directed graphs, they showed that every clus…
Acyclic Poset Multiplihedra and their Quotients
Stefan Forcey, Ross Glew, Christopher Tapo
Two families of polytopes underlie the combinatorics of associative operations. Associahedra and multiplihedra respectively capture the information in the operation itself and in t…
Geometry of in-in correlators
Ross Glew
We introduce a family of polytopes -- in-in zonotopes -- whose boundary structure organizes the contributions to scalar equal-time correlators in flat space computed via the in-in…
The Geometry of BCFW for ABJM Loop Integrands
Livia Ferro, Ross Glew, Tomasz Lukowski +1
In this paper we investigate the loop-level geometry of ABJM theory from the perspective of lightcone geometries in dual space. This geometry admits a natural fibration, where one…
Kinematic flow from the flow of cuts
Ross Glew, Andrzej Pokraka
The wavefunction coefficients of conformally coupled scalars in power-law FRW cosmologies satisfy differential equations governed by a set of simple combinatorial rules known as th…
Generalised wavefunction coefficients and acyclonesto-cosmohedra
Stefan Forcey, Ross Glew, Hyungrok Kim
Scattering amplitudes of theory can be encoded as the canonical form of the Stasheff associahedron. Similarly, the flat-space wavefunction coefficients of…
Singularities of massless scattering and cluster algebras
Lara Bossinger, James Drummond, Ross Glew +2
Partial flag varieties arise in the context of massless scattering kinematics. They can be associated to both spinor-helicity variables and momentum twistor variables in two separa…
Wavefunction coefficients from Amplitubes
Ross Glew
Given a graph its set of connected subgraphs (tubes) can be defined in two ways: either by considering subsets of edges, or by considering subsets of vertices. We refer to these as…
Amplitubes: Graph Cosmohedra
Ross Glew, Tomasz Lukowski
The tree-level scattering amplitudes for theory can be interpreted as a sum over the vertices of a polytope known as the associahedron. For each graph , there e…
Positive and Negative Ladders in Loop Space
Ross Glew, Tomasz Lukowski
Motivated by a new term-wise factorised formula for the two-loop MHV integrand for scattering amplitudes in super Yang-Mills (SYM), together with recent results for…
The Two-loop MHV Momentum Amplituhedron from Fibrations of Fibrations
Livia Ferro, Ross Glew, Tomasz Lukowski +1
Recently, a new approach to computing the canonical forms of the momentum amplituhedron in dual-momentum space was proposed by the authors. These are relevant for the integrands of…
Prescriptive Unitarity from Positive Geometries
Livia Ferro, Ross Glew, Tomasz Lukowski +1
In this paper, we define the momentum amplituhedron in the four-dimensional split-signature space of dual momenta. It encodes scattering amplitudes at tree level and loop integrand…
One-loop string amplitudes in AdSS: Mellin space and sphere splitting
F. Aprile, J. M. Drummond, R. Glew +1
We study string corrections to one-loop amplitudes of single-particle operators in . The tree-level correlators in supergravity enjoy an accidental 1…