45 citations · 224 across the 13 of their papers we have counts for
13 papers
Are Ideal Measurements of Real Scalar Fields Causal?
Emma Albertini, Ian Jubb
Half a century ago a local and (seemingly) causally consistent implementation of the projection postulate was formulated for local projectors in Quantum Field Theory (QFT) by utili…
Interacting Scalar Field Theory on Causal Sets
Ian Jubb
We introduce interacting real scalar Quantum Field Theory (QFT) on causal sets. We consider both the canonical framework of causal set free QFT, involving a Hilbert space and…
Asymptotic measurement schemes for every observable of a quantum field theory
Christopher J. Fewster, Ian Jubb, Maximilian H. Ruep
In quantum measurement theory, a measurement scheme describes how an observable of a given system can be measured indirectly using a probe. The measurement scheme involves the spec…
Causal State Updates in Real Scalar Quantum Field Theory
I. Jubb
In relativistic Quantum Field Theory (QFT) ideal measurements of certain observables are physically impossible without violating causality. This prompts two questions: i) can a giv…
Gauge Gauge Gravity on Homogeneous Spaces using Tensor Convolutions
L. Borsten, I. Jubb, V. Makwana +1
A definition of a convolution of tensor fields on group manifolds is given, which is then generalised to generic homogeneous spaces. This is applied to the product of gauge fields…
Dynamical Phase Error in Interacting Topological Quantum Memories
Luuk Coopmans, Shane Dooley, Ian Jubb +2
A local Hamiltonian with Topological Quantum Order (TQO) has a robust ground state degeneracy that makes it an excellent quantum memory candidate. This memory can be corrupted howe…