Earl T. Campbell
University of Sheffield
99 Papers
523 Citations
Earl T. Campbell is an academic researcher from University of Sheffield. The author has contributed to research in topics: Quantum computer & Qubit. The author has an hindex of 30, co-authored 99 publications. Previous affiliations of Earl T. Campbell include Free University of Berlin & University College London.
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Papers
Roads towards fault-tolerant universal quantum computation
TL;DR: In this article, the authors proposed a fault-tolerant logical qubit architecture for quantum computers, which uses high-dimensional quantum codes in a modular architecture, but need to be explored further.
Application of a Resource Theory for Magic States to Fault-Tolerant Quantum Computing.
Mark Howard,Earl T. Campbell +1 more
TL;DR: This work shows that robustness of magic is a well-behaved magic monotone that operationally quantifies the classical simulation overhead for a Gottesman-Knill-type scheme using ancillary magic states, and forms a resource theory for magic states.
Simulation of quantum circuits by low-rank stabilizer decompositions
Sergey Bravyi,Dan E. Browne,Padraic Calpin,Earl T. Campbell,David Gosset,David Gosset,Mark Howard +6 more
- 02 Sep 2019
TL;DR: A comprehensive mathematical theory of the stabilizerRank and the related approximate stabilizer rank is developed and a suite of classical simulation algorithms with broader applicability and significantly improved performance over the previous state-of-the-art are presented.
Random Compiler for Fast Hamiltonian Simulation.
TL;DR: A randomized compiler for Hamiltonian simulation where gate probabilities are proportional to the strength of a corresponding term in the Hamiltonian, especially suited to electronic structure Hamiltonians relevant to quantum chemistry.
•Posted Content
Building a fault-tolerant quantum computer using concatenated cat codes
Christopher Chamberland,Kyungjoo Noh,Patricio Arrangoiz-Arriola,Earl T. Campbell,Connor T. Hann,Joseph K. Iverson,Harald Putterman,Thomas C. Bohdanowicz,Steven T. Flammia,Andrew J. Keller,Gil Refael,John Preskill,Liang Jiang,Amir H. Safavi-Naeini,Oskar Painter,Fernando G. S. L. Brandão +15 more
TL;DR: This work presents a comprehensive architectural analysis for a fault-tolerant quantum computer based on cat codes concatenated with outer quantum error-correcting codes, and proposes a system of acoustic resonators coupled to superconducting circuits with a two-dimensional layout.
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