Emily Tyhurst
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The rank of contextuality Open
Quantum contextuality is one of the most recognized resources in quantum communication and computing scenarios. We provide a new quantifier of this resource, the rank of contextuality (RC). We define RC as the minimum number of non-context…
Erratum: Phase-space-simulation method for quantum computation with magic states on qubits [Phys. Rev. A <b>101</b>, 012350 (2020)] Open
Received 21 February 2022DOI:https://doi.org/10.1103/PhysRevA.105.039902©2022 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasQuantum computationQuantum opticsResource theoriesQuantum InformationAtomic, Molecular & O…
Redshift space distortions in Lagrangian space and the linear large scale velocity field of dark matter Open
Untangling the connection between redshift space coordinates, a velocity measurement, and three dimensional real space coordinates, is a cosmological problem that is often modeled through a linear understanding of the velocity-position cou…
View article: Imaginary images and Stokes phenomena in the weak plasma lensing of coherent sources
Imaginary images and Stokes phenomena in the weak plasma lensing of coherent sources Open
The study of astrophysical plasma lensing, such as in the case of extreme scattering events, has typically been conducted using the geometric limit of optics, neglecting wave effects. However, for the lensing of coherent sources such as pu…
Phase-space-simulation method for quantum computation with magic states on qubits Open
We propose a method for classical simulation of finite-dimensional quantum\nsystems, based on sampling from a quasiprobability distribution, i.e., a\ngeneralized Wigner function. Our construction applies to all finite dimensions,\nwith the…
The cohomological and the resource-theoretic perspective on quantum contextuality: common ground through the contextual fraction Open
We unify the resource-theoretic and the cohomological perspective on quantum contextuality. At the center of this unification stands the notion of the contextual fraction. For both symmetry and parity based contextuality proofs, we establi…