106 citations · 811 across the 23 of their papers we have counts for
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Effective Field Theories as Lagrange Spaces
Nathaniel Craig, Yu-Tse Lee, Xiaochuan Lu +1
We present a formulation of scalar effective field theories in terms of the geometry of Lagrange spaces. The horizontal geometry of the Lagrange space generalizes the Riemannian ge…
On-Shell Covariance of Quantum Field Theory Amplitudes
Timothy Cohen, Nathaniel Craig, Xiaochuan Lu +1
Scattering amplitudes in quantum field theory are independent of the field parameterization, which has a natural geometric interpretation as a form of `coordinate invariance.' Ampl…
Quantum mechanics of a generalised rigid body
Ben Gripaios, Dave Sutherland
We consider the quantum version of Arnold's generalisation of a rigid body in classical mechanics. Thus, we quantise the motion on an arbitrary Lie group manifold of a particle who…
Quantum Field Theory of Fluids
Ben Gripaios, Dave Sutherland
The quantum theory of fields is largely based on studying perturbations around non-interacting, or free, field theories, which correspond to a collection of quantum-mechanical harm…